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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 - 2009 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 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 12 632
~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 5 311
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 5 162
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 7 155
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 10 116
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 1 115
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 0 115
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 0 114
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 0 100
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 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 90
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 87
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 84
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 83
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 75
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 73
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 72
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 72
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 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 67
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 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 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 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 49
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 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 45
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 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 43
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 43
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 41
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 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 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 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 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 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 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 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 33
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 30
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 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 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 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 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 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 26
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 26
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 26
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 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 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 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 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 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 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 24
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 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 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 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 21
TAIYO YUDEN CO., LTD. 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 4 0 0 0 0 1 0 0 1 1 0 0 0 2 1 0 0 5 1 0 1 2 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 21
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 20
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 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 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 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 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 18
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 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 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 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 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 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 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 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 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 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 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 15
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 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 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 15
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 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 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 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 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 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 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 14
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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 12
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 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 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 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 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 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 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 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 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 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 11
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 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 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 11
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 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 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 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 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 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 10
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 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 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 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 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 10
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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 8
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 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 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 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 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 8
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 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 8
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 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 8
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 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 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 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 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 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 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 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 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 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 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 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 7
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 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 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 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 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 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 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 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 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 7
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 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 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 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 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 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 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 7
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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 6
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 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 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 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 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 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 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 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 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 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 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 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 6
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 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 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 6
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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 5
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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 5
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 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 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 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 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 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 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 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 5
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 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 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 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 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 5


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