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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

Patenting In Technology Classes,
Breakout By Organization

Count of 1969 - 2010 Utility Patent Grants,
By Calendar Year of Grant
With Patent Counts Based on Primary Patent Classification

- Explanation of Data -

Rank Ordered Listing of Organizations Receiving 5 or More Utility Patents During the Period
Having Primary Classification In

Class 501, Compositions: Ceramic

( technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data' )
( patent ownership is determined by the first-named assignee listed on a patent )

The following table displays first-named assignees and counts of their associated patents, as distributed by the year of patent grant.
First-Named Assignee 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 Total
CORNING INCORPORATED 9 13 17 16 14 15 18 21 20 23 6 12 19 17 17 17 13 13 15 22 17 21 14 21 23 30 21 17 14 4 7 11 20 19 15 12 9 8 9 11 12 16 648
~INDIVIDUALLY OWNED PATENT 4 6 7 6 10 10 5 2 8 10 6 5 7 3 6 9 5 1 5 9 11 11 8 12 6 13 11 13 7 10 11 5 12 12 14 5 6 4 5 6 5 2 313
NGK INSULATORS LTD. 2 0 1 1 0 0 2 0 0 0 0 2 5 4 1 0 6 3 5 6 16 5 9 9 10 6 2 2 6 6 7 5 1 4 4 4 5 4 8 6 5 7 169
MURATA MANUFACTURING CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 2 0 2 2 4 3 6 2 6 4 1 6 3 6 5 7 2 6 7 5 7 5 21 9 3 7 1 5 11 7 4 159
ASAHI GLASS COMPANY, LTD. 0 0 0 1 3 0 0 1 2 2 0 1 0 3 1 0 0 3 6 0 0 0 4 1 7 5 1 3 4 11 7 1 7 5 7 3 2 5 1 9 10 5 121
GENERAL ELECTRIC COMPANY 2 4 6 3 1 4 0 1 5 7 1 3 6 1 3 2 5 5 7 9 4 3 7 1 1 1 2 4 2 3 4 1 2 2 0 0 0 2 0 0 1 2 117
LANXIDE TECHNOLOGY COMPANY, LP 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 14 12 19 20 18 14 9 4 4 0 0 0 0 0 0 0 0 0 0 0 0 0 115
NGK SPARK PLUG CO., LTD. 0 0 0 0 0 0 1 0 0 0 0 2 1 1 2 0 3 8 6 5 8 3 6 7 5 5 5 4 4 1 7 7 5 3 1 4 4 3 3 0 0 0 114
OWENS-ILLINOIS INC. 11 16 6 5 7 9 7 11 10 5 2 1 1 3 1 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100
SCHOTT GLASWERKE 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 5 5 4 3 2 4 2 3 5 4 2 3 1 2 4 0 6 8 7 4 7 7 5 1 0 0 0 98
KYOCERA CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 6 3 1 2 2 3 5 6 1 3 8 4 6 4 6 4 6 3 2 2 2 3 3 5 95
TDK CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 4 0 2 2 1 2 1 1 2 1 3 2 2 3 4 9 7 4 5 1 9 9 8 9 92
HOYA CORPORATION 0 0 0 0 0 0 0 0 1 4 3 1 2 0 2 2 3 2 3 2 2 1 3 2 5 0 0 0 1 1 1 3 3 1 5 5 3 4 4 2 13 7 91
E. I. DU PONT DE NEMOURS AND COMPANY 3 2 4 8 5 6 0 0 0 0 0 0 0 0 0 0 0 3 1 2 7 4 5 12 1 5 2 2 0 3 0 1 0 0 0 2 4 4 0 1 0 2 89
NIPPON SHEET GLASS CO., LTD. 0 1 1 0 1 0 1 0 0 0 0 0 2 0 0 1 2 0 1 1 1 1 1 1 1 1 0 0 0 1 6 4 6 11 6 7 4 1 4 2 4 4 77
SUMITOMO ELECTRIC INDUSTRIES CO., LTD. 0 0 0 0 0 0 0 0 1 0 0 2 0 0 0 0 0 1 0 3 0 1 5 3 8 9 7 6 3 3 5 3 4 2 3 2 1 1 0 2 0 2 77
KABUSHIKI KAISHA OHARA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 1 0 0 5 2 2 3 0 6 2 7 9 4 7 2 7 4 6 3 1 73
TOSHIBA CORPORATION 0 0 1 0 0 1 0 2 1 2 0 0 1 3 3 1 3 0 4 3 7 1 4 3 5 0 2 3 2 3 2 2 1 2 1 2 0 2 2 0 3 1 73
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 2 1 1 1 3 0 0 0 0 1 0 0 1 2 0 3 5 1 1 1 3 3 2 2 7 1 4 3 3 1 1 0 1 1 2 5 2 5 1 1 0 0 71
NIPPON ELECTRIC GLASS COMPANY LIMITED 0 0 0 1 0 0 2 2 1 0 0 0 0 1 2 0 1 1 1 3 2 0 6 1 0 3 0 1 2 3 0 3 3 6 7 5 4 1 1 1 3 1 68
DOW CHEMICAL COMPANY 5 1 0 0 1 1 0 0 0 0 1 0 1 0 1 1 0 0 1 2 5 4 6 6 8 6 3 3 3 3 0 0 0 0 0 0 0 0 0 0 0 0 62
DRESSER INDUSTRIES, INC. 7 4 11 2 1 3 0 3 1 1 1 1 2 0 1 2 6 1 1 2 3 3 2 0 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 62
JAPAN AS REPRESENTED BY DIRECTOR GENERAL OF AGENCY OF INDUSTRIAL SCIENCE AND TECHNOLOGY 0 0 0 0 0 0 0 0 0 0 0 1 2 1 2 0 3 0 1 3 3 3 7 4 1 3 3 1 1 6 1 3 4 0 0 1 0 0 0 0 0 0 54
FERRO-CORPORATION 0 0 0 2 0 0 3 0 0 1 0 2 0 4 1 0 0 0 0 0 2 1 3 4 3 3 1 1 2 1 1 1 0 2 1 2 1 2 2 0 3 4 53
SCHOTT AG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 12 6 17 12 53
U.S. PHILIPS CORPORATION 0 1 4 3 2 4 3 2 0 1 0 0 1 2 2 4 0 2 1 0 1 1 0 0 2 1 2 2 3 0 1 1 1 0 0 0 0 0 0 0 0 0 47
PPG INDUSTRIES INC. 3 2 4 1 0 2 2 2 0 2 2 5 2 0 0 0 1 0 0 3 1 2 4 0 2 0 1 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 45
UNITED STATES OF AMERICA, NAVY 1 0 0 0 0 0 1 1 0 0 0 0 1 1 0 0 1 1 0 0 0 2 3 1 1 3 1 6 4 1 1 2 3 1 3 2 0 0 1 0 1 1 44
JENAER GLASWERK SCHOTT + GEN 1 2 6 3 4 2 5 7 2 3 2 2 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 43
NORTON COMPANY 1 0 0 1 0 5 1 1 4 1 0 1 0 2 0 4 3 2 2 1 1 3 3 3 1 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 43
ALCOA INC. 2 1 0 0 0 0 0 0 0 1 1 0 1 1 0 0 2 0 1 3 4 2 5 5 5 3 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 39
MINNESOTA MINING AND MANUFACTURING COMPANY 0 1 1 0 1 2 1 0 1 1 1 0 0 0 0 0 0 0 0 4 6 5 2 4 5 3 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 39
UNITED STATES OF AMERICA, DEPARTMENT OF ENERGY 0 1 0 0 0 2 0 2 0 0 1 2 2 0 0 3 2 1 3 1 2 3 7 0 1 1 1 0 2 0 0 1 0 0 1 0 0 0 0 0 0 0 39
ALLIED-SIGNAL INC. 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 3 0 0 1 3 0 2 4 5 7 3 2 2 1 0 0 2 0 0 0 0 0 0 0 0 0 37
BAYER AKTIENGESELLSCHAFT 0 0 0 0 0 1 2 0 0 2 2 0 0 0 0 3 0 0 0 0 2 2 5 3 2 4 1 1 2 1 1 0 0 1 0 0 0 0 0 0 0 0 35
CARBORUNDUM COMPANY 3 0 2 1 2 2 2 0 0 1 4 1 0 0 0 0 0 0 0 0 0 0 2 1 2 1 3 4 1 1 0 0 0 0 0 0 0 0 0 0 0 0 33
ERNST LEITZ WETZLAR GMBH 4 5 5 3 1 2 3 5 1 0 0 1 0 1 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 33
KAISER ALUMINUM + CHEMICAL CORPORATION 2 4 4 0 3 5 2 1 2 2 2 2 2 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 33
PPG INDUSTRIES OHIO INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 2 3 4 5 3 0 2 3 6 32
NIKON CORPORATION 0 0 0 2 0 0 0 0 0 3 2 1 4 0 1 2 0 0 0 0 1 0 0 0 2 0 1 0 1 1 1 1 2 2 2 1 0 0 0 0 0 0 30
GUARDIAN INDUSTRIES CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1 2 3 1 3 5 1 0 8 3 29
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 6 1 3 2 0 0 1 0 3 1 2 3 0 0 0 28
MINOLTA CAMERA CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 21 0 2 0 1 1 0 0 28
DOW CORNING CORPORATION 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 3 2 0 3 2 2 1 2 1 3 0 0 2 0 0 1 0 0 0 1 0 0 0 0 27
INTERNATIONAL BUSINESS MACHINES CORPORATION 0 1 1 1 0 2 4 2 2 0 0 0 0 0 1 1 0 0 0 1 0 1 2 1 1 2 0 1 0 0 1 0 2 0 0 0 0 0 0 0 0 0 27
KENNAMETAL INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 5 2 0 0 0 1 1 0 0 1 0 0 0 0 1 2 2 4 4 0 1 27
W. R. GRACE & CO.-CONN. 1 0 1 0 2 2 0 2 0 0 0 0 0 0 0 0 0 0 0 1 0 3 3 5 1 3 1 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 27
GTE PRODUCTS CORPORATION 0 0 0 1 0 3 0 1 1 0 2 0 0 0 1 0 3 2 3 1 1 0 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 26
GENERAL REFRACTORIES COMPANY 1 1 5 3 3 4 2 0 1 1 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 25
UBE INDUSTRIES LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 1 1 1 1 3 2 0 1 1 0 1 5 0 1 0 0 0 1 1 2 0 0 0 25
HITACHI, LTD 0 0 0 0 1 0 1 0 1 0 0 0 2 0 2 0 2 3 1 1 1 1 3 1 1 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 24
OWENS-CORNING FIBERGLAS CORPORATION 0 1 4 0 0 5 2 2 1 0 0 0 1 1 1 0 2 2 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 24
SHIN ETSU CHEMICAL CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 2 2 1 2 5 1 0 0 0 1 0 1 2 1 1 0 0 2 0 0 0 24
UNITED TECHNOLOGIES CORPORATION 0 0 1 0 1 3 1 1 0 0 0 1 1 1 3 1 0 1 0 1 1 1 0 0 0 4 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 24
3M INNOVATIVE PROPERTIES COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 2 1 1 4 3 1 4 3 23
TAIYO YUDEN CO., LTD. 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 5 0 1 0 0 1 0 0 1 1 0 0 0 2 1 0 0 5 1 0 1 2 0 0 0 23
IMPERIAL CHEMICAL INDUSTRIES PLC 0 1 0 0 0 2 4 5 1 1 0 0 0 0 0 0 1 0 1 0 1 1 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22
NEC CORPORATION 1 0 0 0 0 0 1 1 1 1 0 1 0 0 0 1 0 0 1 1 0 0 0 1 2 2 0 0 1 1 3 0 0 2 1 0 0 0 0 0 0 0 22
FORD MOTOR COMPANY 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 2 0 0 0 0 2 0 3 1 0 2 2 2 0 2 2 1 0 0 0 0 0 0 0 0 0 0 21
HOYA GLASS WORKS, LTD. 0 0 0 4 2 4 4 3 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21
TDK ELECTRONICS CO., LTD. 4 1 1 1 0 0 0 1 4 2 0 3 2 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21
SHINAGAWA REFRACTORIES CO., LTD. 0 0 0 0 0 0 0 0 0 2 0 0 3 0 0 2 0 1 0 2 1 0 1 1 0 1 1 1 1 1 1 0 0 0 0 0 0 0 1 0 0 0 20
CENTRAL GLASS COMPANY, LIMITED 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 1 0 2 0 3 0 1 4 1 0 0 0 0 0 1 1 1 0 0 1 0 0 1 0 19
SAINT-GOBAIN CERAMICS & PLASTICS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 6 3 4 1 1 1 1 19
SANDVIK AKTIEBOLAG 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2 1 1 2 1 0 3 0 2 0 3 1 1 1 0 0 0 0 0 0 0 0 19
CORHART REFRACTORIES COMPANY 1 4 4 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 18
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO 0 0 0 0 1 0 0 0 2 1 1 0 0 0 0 0 0 0 0 0 0 3 2 4 0 0 0 1 0 0 0 1 0 0 1 1 0 0 0 0 0 0 18
TOSOH CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 1 2 0 1 0 0 1 0 3 1 1 0 0 0 2 0 0 2 0 18
EASTMAN KODAK COMPANY 0 0 0 1 1 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 3 3 0 2 1 0 0 0 0 0 0 0 0 0 17
HITACHI METALS LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 1 1 2 1 1 0 0 0 0 0 0 2 0 0 1 0 1 0 0 5 17
LIBBEY-OWENS-FORD COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 1 0 2 1 1 2 2 4 1 1 0 0 0 0 0 0 0 0 0 17
PILKINGTON BROTHERS LIMITED 1 0 1 0 0 0 2 1 3 3 1 0 1 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17
SCHOTT GLASS TECHNOLOGIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 1 0 0 4 1 2 1 1 1 0 0 0 0 0 0 0 1 1 1 0 0 0 0 17
ELEKTROSCHEMELZWERK KEMPTEN GMBH 1 0 0 0 0 1 0 0 0 0 0 1 0 1 0 1 2 1 0 1 4 0 1 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16
MORGAN CRUCIBLE COMPANY PLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 1 1 2 3 0 1 0 0 0 1 2 1 1 0 1 16
SAINT GOBAIN/NORTON INDUSTRIAL CERAMICS CORP. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 8 2 2 2 1 0 0 0 0 0 0 0 0 0 0 16
SAMSUNG ELECTRO-MECHANICS CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 3 1 4 4 0 0 0 1 2 16
UNITED STATES OF AMERICA, ARMY 0 1 0 0 0 2 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 1 1 3 0 0 3 0 0 1 0 0 0 0 0 0 1 16
DEGUSSA AKTIENGESELLSCHAFT 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 1 1 0 2 5 2 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 15
INDRESCO, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 7 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15
MITSUBISHI MATERIALS CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 5 3 0 2 1 0 0 1 0 0 0 0 1 0 0 0 0 15
NIPPON STEEL CORP. 0 0 1 0 0 1 1 0 0 0 0 0 0 0 1 0 1 0 0 0 1 1 2 0 0 1 0 1 0 0 0 0 0 1 0 0 1 1 1 0 0 0 15
SANYO ELECTRIC CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 2 0 0 0 0 0 0 0 0 0 0 2 6 1 0 0 15
WESTINGHOUSE ELECTRIC CORP. 0 0 2 0 0 0 1 1 0 2 1 2 0 1 1 0 0 0 0 0 0 1 1 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 15
ALCAN INTERNATIONAL LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 1 0 4 5 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 14
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 3 2 1 1 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 14
DIDIER-WERKE A.G. 0 0 1 1 0 0 1 0 0 0 1 0 0 0 0 0 0 0 1 2 1 0 1 0 0 2 1 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 14
GLAVERBEL 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 1 2 0 1 0 1 0 0 0 2 0 0 0 1 0 1 2 1 0 0 0 14
OWENS-CORNING FIBERGLAS TECHNOLOGY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 3 1 1 4 0 0 0 1 0 0 0 0 0 0 14
SOCIETE EUROPEENNE DES PRODUITS REFRACTAIRES 0 0 0 0 0 0 0 0 0 1 1 2 1 1 0 0 1 0 0 0 0 1 0 0 0 0 1 1 0 0 0 2 0 0 2 0 0 0 0 0 0 0 14
SUMITOMO SPECIAL METAL COMPANY LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 2 1 0 0 1 0 0 2 0 0 0 2 1 0 2 0 0 0 0 0 0 14
AMERICAN OPTICAL CORPORATION 0 0 0 1 0 1 5 5 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13
BATTELLE MEMORIAL INSTITUTE 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 1 1 1 0 2 2 0 0 0 0 0 3 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 13
GTE LABORATORIES, INC. 0 0 0 0 0 0 0 0 0 3 1 0 1 1 0 0 1 3 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13
HERAEUS QUARZGLAS GMBH & CO. KG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 2 1 1 0 3 1 0 1 2 13
HOECHST AKTIENGESELLSCHAFT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 5 0 0 1 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 13
MOTOROLA, INC. 0 0 0 0 0 0 0 1 0 2 0 0 0 2 0 0 1 0 0 0 0 0 1 1 0 0 0 0 0 2 1 1 0 0 0 1 0 0 0 0 0 0 13
ROCKWOOL INTERNATIONAL A/S 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 1 3 0 2 1 0 1 0 0 1 0 0 0 1 0 13
SAINT-GOBAIN VITRAGE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 2 2 1 1 0 0 0 0 0 0 0 0 13
UNION CARBIDE CORPORATION 3 1 1 0 2 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13
UNITED STATES OF AMERICA, NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 3 1 1 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 13
VESUVIUS CRUCIBLE COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 0 0 0 2 0 1 0 0 0 1 0 2 1 2 0 0 0 1 0 0 0 13
AT&T CORP. 1 1 1 2 0 0 0 1 0 0 0 0 0 1 0 1 0 0 1 0 0 1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
COMBUSTION ENGINEERING INC. 0 0 1 2 0 1 0 0 0 2 0 1 0 0 1 1 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
DIRECTOR GENERAL OF NATIONAL INSTITUTE FOR RESEARCH IN INORGANIC MATERIALS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 1 1 1 0 0 0 0 0 0 0 3 0 0 0 0 0 2 1 0 0 0 0 0 0 12
ECC INTERNATIONAL LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 2 0 0 0 2 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 12
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 0 0 2 3 0 1 0 0 2 0 1 0 0 0 12
ISOVER SAINT-GOBAIN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 1 4 2 0 0 0 1 0 0 0 1 1 12
LG ELECTRONICS INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 4 2 2 0 0 1 0 0 0 2 12
MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN E.V 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 2 0 1 1 0 1 0 1 0 0 1 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 12
MITSUBISHI MINING & CEMENT CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 1 1 1 1 1 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
TAM CERAMICS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 0 0 1 2 1 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 12
TOSHIBA CERAMICS CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 1 1 1 0 0 0 0 0 0 0 1 0 1 1 0 1 2 0 0 0 0 0 12
UNIVERSITY OF CALIFORNIA, THE REGENTS OF 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 2 0 0 1 1 0 1 0 0 0 1 2 0 0 0 0 12
BABCOCK & WILCOX COMPANY 0 1 0 0 0 1 0 0 0 1 1 0 1 0 2 0 0 0 1 1 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
CHICAGO FIRE BRICK COMPANY 1 0 0 0 0 4 1 0 1 2 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
CORNING S.A. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 5 2 0 0 0 0 0 0 0 0 11
DENKI KAGAKU KOGYO KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2 2 0 1 0 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 1 1 11
EUROKERA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 3 3 0 11
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 1 1 1 2 1 2 0 0 0 0 0 0 0 0 0 11
IBIDEN CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 1 2 3 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 11
NALCO CHEMICAL COMPANY 0 1 1 0 0 0 0 0 0 0 0 2 1 2 0 1 0 1 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
OLIN CORPORATION 1 0 0 0 2 0 0 0 0 0 0 0 0 0 1 0 1 0 0 2 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
RHONE-POULENC CHIMIE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 2 0 1 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 11
SUMITOMO CHEMICAL COMPANY, LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 1 0 2 0 0 0 1 1 0 1 0 0 2 0 0 0 11
COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 1 0 0 0 1 0 3 1 1 0 0 10
GLAVERBEL S.A. 3 0 0 0 0 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 10
HERCULES INCORPORATED 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 10
IVOCLAR VIVADENT AG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 2 2 0 4 10
JOHNS MANVILLE INTERNATIONAL, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 2 1 1 2 0 0 0 0 0 0 10
KENNECOTT CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 2 2 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10
MATSUSHITA ELECTRIC WORKS, LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 2 1 0 2 1 0 0 0 0 0 0 2 0 0 0 0 10
OSRAM SYLVANIA INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 1 1 0 1 0 1 0 1 0 0 2 10
SAINT-GOBAIN GLASS FRANCE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 2 2 10
SUMITA OPTICAL GLASS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 1 1 0 0 0 0 2 0 0 1 0 2 1 0 0 0 10
TOTO, LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 1 0 1 0 0 0 0 0 0 0 2 1 3 10
UNITED STATES BORAX + CHEMICAL CORPORATION 1 1 0 3 1 1 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10
AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE (ANVAR) 0 0 2 0 0 1 0 0 0 2 1 1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
CHAMPION SPARK PLUG CO. 0 0 0 0 0 0 0 1 0 3 0 0 1 0 0 0 1 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
FOSECO INTERNATIONAL LIMITED 0 0 0 0 2 0 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 9
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 0 1 1 1 0 0 0 0 0 0 0 1 1 0 0 0 0 9
IVOCLAR AG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 1 1 1 2 1 0 0 0 0 0 0 0 9
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 1 0 0 0 1 1 3 1 0 0 0 0 0 0 0 0 0 9
KUREHA CHEMICAL INDUSTRY CO., LTD. 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 2 0 1 1 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
MITSUBISHI DENKI KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 1 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 9
NARUMI CHINA CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 3 3 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
NIPPON TUNGSTEN COMPANY, LTD. 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 1 0 1 0 0 1 0 0 1 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 9
NIPPONDENSO CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 1 4 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 9
ROBERT BOSCH GMBH 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1 0 0 0 0 3 0 0 0 0 0 1 9
SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 3 1 3 9
SUMITOMO METAL MINING COMPANY LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 2 3 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
UNIVERSITY OF FLORIDA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 1 1 1 0 0 0 1 0 2 0 0 0 0 0 0 0 0 0 0 9
BENCHMARK STRUCTURAL CERAMICS CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
BOEING COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 0 2 0 0 0 1 0 2 0 0 0 0 0 0 8
CHAS. TAYLOR S SONS COMPANY 0 0 0 0 2 4 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
COMMISSARIAT A L'ENERGIE ATOMIQUE 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 1 0 0 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 1 8
COOKSON GROUP PLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 1 0 2 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 8
ENGELHARD CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 2 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 8
ETHYL CORPORATION 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
FELDMUHLE AKTIENGESELLSCHAFT 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 1 0 1 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
JOHNSON MATTHEY INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 3 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
KABUSHIKI KAISHA OHARA KOGAKU GARASU SEIZOSHO 0 0 0 1 0 0 0 0 0 4 0 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
KONINKLIJKE PHILIPS ELECTRONICS N.V. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 1 2 1 8
KUROSAKI REFRACTORIES CO., LTD. 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 1 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
KYUSHU REFRACTORIES CO., LTD. 0 0 0 0 0 0 0 0 1 0 0 1 1 0 0 1 1 1 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 8
MARTIN MARIETTA ENERGY SYSTEMS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 3 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
NATIONAL SCIENCE COUNCIL 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 3 1 0 1 1 0 0 0 0 0 0 0 0 8
NL INDUSTRIES INC. 1 1 1 0 1 1 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
NORITAKE CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 1 3 1 0 0 0 0 8
OLYMPUS OPTICAL CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 0 0 0 1 1 0 1 1 0 0 0 0 0 0 0 0 8
QUIGLEY COMPANY, INC. 0 1 0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
ROCKWELL INTERNATIONAL CORPORATION 0 0 0 0 1 1 0 0 0 0 0 0 0 1 1 0 0 1 1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
SAINT-GOBAIN INDUSTRIES 0 0 0 1 1 0 1 1 1 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
SIEMENS AKTIENGESELLSCHAFT 0 0 0 2 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 0 8
TOKUYAMA SODA KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 2 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
UNIFRAX CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 1 2 0 0 0 0 1 0 0 2 0 0 8
UNITED STATES OF AMERICA, AIR FORCE 1 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 8
UOP 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 2 0 0 0 0 0 1 0 0 0 0 1 1 0 0 0 0 0 8
ARMSTRONG WORLD INDUSTRIES, INC. 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 3 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 7
BASF AKTIENGESELLSCHAFT 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 1 0 1 1 1 0 0 0 0 0 0 0 0 0 0 7
BRIDGESTONE CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 2 1 1 0 0 0 0 0 0 0 7
CABOT CORPORATION 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 1 0 1 0 1 0 0 0 0 0 0 0 7
CERDEC AKTIENGESELLSCHAFT KERAMISCHE FARBEN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 1 1 0 0 0 0 0 0 0 0 0 0 7
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANIZATION 0 1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
COMPAGNIE DE SAINT-GOBAIN-PONT-A-MOUSSON 1 3 1 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 0 1 0 1 1 0 1 0 0 0 7
EXXON RESEARCH + ENGINEERING CO. 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 1 0 0 0 1 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 7
GENERAL MOTORS CORPORATION 1 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
H. C. SPINKS CLAY COMPANY INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 0 0 0 7
JOHNS-MANVILLE CORPORATION 1 1 1 0 0 0 0 0 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
JOHNSON MATTHEY PUBLIC LIMITED COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 1 0 7
MASSACHUSETTS INSTITUTE OF TECHNOLOGY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 2 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 7
NATIONAL RESEARCH DEVELOPMENT CORPORATION 0 0 0 0 0 1 2 1 1 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
RCA CORPORATION 0 0 0 1 1 0 1 0 0 0 0 0 0 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
SAINT-GOBAIN VITRAGE INTERNATIONAL 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 2 0 0 1 0 0 0 1 0 0 0 0 0 0 0 7
SHOWA DENKO KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 1 0 0 0 0 0 1 0 0 1 1 0 0 0 1 7
SPRAGUE ELECTRIC COMPANY 0 2 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
THIELE KAOLIN COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 1 1 3 0 0 0 0 0 0 0 0 0 0 0 0 7
UNITED KINGDOM ATOMIC ENERGY AUTHORITY 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0 2 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
WISCONSIN ALUMNI RESEARCH FOUNDATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 3 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 7
A. P. GREEN REFRACTORIES CO. 2 0 1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
AGENCY FOR DEFENCE DEVELOPMENT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 2 2 0 0 0 0 0 0 0 6
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
BAUSCH & LOMB, INC. 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
BETHLEHEM STEEL CORPORATION 1 2 0 1 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
CERDEC CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 3 0 0 1 0 0 0 0 0 0 0 0 0 6
CHEVRON RESEARCH & TECHNOLOGY CO. 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
COORS PORCELAIN COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
ENGLISH CLAYS LOVERING POCHIN + COMPANY LIMITED 0 0 1 1 0 0 1 0 2 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
FMC CORPORATION 0 0 1 0 1 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
FUJI PHOTO FILM CO., LTD 0 0 0 0 0 1 1 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 6
FUJITSU LIMITED 0 0 0 0 0 2 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 6
GEORGIA TECH RESEARCH CORP. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 1 0 6
HARBISON-WALKER REFRACTORIES COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 2 1 0 0 0 0 0 0 0 1 6
HARIMA CERAMIC CO. LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
HOECHST CELANESE CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
ISUZU CERAMICS RESEARCH INSTITUTE CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 2 0 1 2 0 0 0 0 0 0 0 0 0 0 6
KONICA MINOLTA OPTO, INC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 4 6
KROSAKI CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 2 0 0 0 0 1 0 0 0 0 0 0 0 0 6
LOCKHEED CORPORATION 0 2 2 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
MAGNECO/METREL, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 2 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 6
MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 1 0 0 0 0 0 1 0 6
MRA LABORATORIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 2 0 0 2 0 0 0 0 0 0 6
NIPPON TELEGRAPH & TELEPHONE CORP. 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6
NORTH AMERICAN REFRACTORIES CO. INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 1 1 0 1 1 0 0 0 0 0 0 0 6
OHARA INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 6
OSTERREICHISCH-AMERIKANISCHE MAGNESIT AKTIENGESELLSCHAFT 1 0 0 1 0 0 0 0 2 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
PARATEK MICROWAVE, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 0 1 0 1 0 6
PILKINGTON PLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 6
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 1 0 2 0 6
REFRATECHNIK HOLDING GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 0 0 0 1 0 6
SAMSUNG CORNING CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 1 2 0 0 0 0 0 0 0 0 0 0 6
SAVOIE REFRACTAIRES 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 2 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 6
STEMCOR CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
SUMITOMO METAL INDUSTRIES CO., LTD. 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 0 0 0 0 0 0 1 1 0 0 0 6
SWISS ALUMINIUM LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
TOYOTA JIDOSHA K.K. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 6
UNIVERSITY OF CHICAGO 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 1 1 1 0 0 1 0 0 0 0 6
UNIVERSITY OF ROCHESTER 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
VEITSCH-RADEX AKTIENGESELLSCHAFT FUR FEUERFESTE ERZEUGNISSE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 1 1 0 0 0 0 0 0 0 0 0 0 0 0 6
A. P. GREEN INDUSTRIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
ALPS ELECTRIC CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
BASIC INCORPORATED 2 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
CANON KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 1 5
COOPER INDUSTRIES INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5
DEUTSCHE SPEZIALGLAS AG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
DYNAMIT NOBEL AKTIENGESELLSCHAFT 0 0 0 1 0 1 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
EFFEM GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
H. C. STARCK GMBH & CO. KG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 5
HALDOR TOPSOE A/S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 1 0 0 0 1 0 0 0 0 0 0 5
HITACHI CHEMICAL COMPANY, LTD. 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 5
HOECHST CERAMTEC AG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 5
HUGHES AIRCRAFT COMPANY 0 0 0 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
INTERNATIONAL STANDARD ELECTRIC CORPORATION (ITT CORP. UNIT) 0 0 0 1 0 1 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
IOWA STATE UNIVERSITY RESEARCH FOUNDATION INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 1 1 0 0 0 0 0 0 0 0 5
J. M. HUBER CORPORATION 0 0 1 0 0 0 0 1 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
JOHNS MANVILLE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 4 5
KAWASAKI STEEL CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 5
KIGRE, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5
MINERALS TECHNOLOGIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 3 1 0 0 0 0 0 0 0 0 5
MITSUBISHI CHEMICAL CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 2 1 0 0 0 0 0 0 0 0 0 5
MITSUI PETROCHEMICAL INDUSTRIES LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
NICHIAS CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5
NIPPON CRUCIBLE CO., LTD. 0 0 0 0 1 0 1 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 5
NIPPON PILLAR PACKING CO. LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 5
NISSAN MOTOR COMPANY, LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
NITTO BOSEKI CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 1 0 0 0 0 0 5
SCM CORPORATION 0 0 1 0 1 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
SONY CORPORATION 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 5
SOUTHERN CLAY PRODUCTS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 5
TOA NENRYO KOGYO KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
TOKUYAMA CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 0 1 1 0 5
UNION CARBIDE COATINGS SERVICE TECHNOLOGY CORP. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
UNIVERSITY OF MICHIGAN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 5
VEITSCHER MAGNESITWERKE-AKTIENGESELLSCHAFT 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
YOSHIDA KOGYO KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5


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