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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Team (PTMT)

Patenting In Technology Classes,
Breakout By Organization

Count of 1969 - 2008 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 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 11 620
~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 6 306
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 6 157
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 11 148
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 0 115
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 0 114
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 0 114
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 9 106
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 0 100
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 98
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 87
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 87
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 75
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 75
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 71
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 71
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 69
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 69
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 69
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 64
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 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 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 54
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 47
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 46
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 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 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 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 42
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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 24
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 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 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 24
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 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 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 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 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 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 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 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 20
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 19
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 18
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 18
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 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 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 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 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 17
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 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 17
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 16
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 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 16
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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 13
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 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 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 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 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 13
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 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 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 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 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 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 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 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 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 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 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 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 12
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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 10
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 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 10
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 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 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 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 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 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 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 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 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 9
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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 8
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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 6
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 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 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 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 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 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 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 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 6
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 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 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 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 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 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 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 6
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 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 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 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 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 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 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 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 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 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 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 5
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 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 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 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 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 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 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 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 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 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 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 5
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 5
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 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 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 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 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 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 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 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 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 5
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 5
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 5
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 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 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 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 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 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 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 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 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 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 5



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