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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 095, Gas Separation: Processes

( 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
~INDIVIDUALLY OWNED PATENT 10 15 11 16 29 24 23 17 22 11 11 24 22 10 21 18 15 14 19 22 24 21 19 27 19 13 14 16 21 23 28 14 28 27 22 17 22 16 10 16 9 27 787
AIR PRODUCTS AND CHEMICALS, INC. 1 1 0 0 0 0 1 2 2 1 2 3 2 1 2 5 4 1 8 13 9 10 15 7 12 8 9 15 4 15 8 8 6 9 17 6 1 6 8 9 6 9 246
L'AIR LIQUIDE, SOCIETE ANONYME A DIRECTOIRE ET CONSEIL DE SURVEILLANCE POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 0 0 1 3 2 2 1 0 1 0 1 0 0 0 0 0 2 1 0 1 1 2 1 5 5 4 5 7 4 8 11 11 22 14 8 5 6 9 4 4 5 5 161
PRAXAIR 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 3 4 7 7 5 5 14 13 9 8 11 10 7 0 6 7 4 6 11 137
UOP 1 1 0 1 2 1 1 0 2 2 1 1 0 0 0 0 3 2 0 2 4 3 7 5 4 3 5 6 5 0 1 6 5 2 2 1 1 2 1 6 4 7 100
UNION CARBIDE CORPORATION 2 3 1 4 5 2 3 4 4 3 3 4 6 6 6 6 2 4 7 9 10 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 96
BOC GROUP, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 2 1 0 6 6 0 2 9 4 7 8 7 7 13 5 0 3 2 2 4 1 0 92
LINDE AKTIENGESELLSCHAFT 0 0 1 2 0 2 2 2 4 1 0 0 7 8 4 2 5 5 8 6 3 0 1 0 0 0 1 1 1 0 0 1 1 0 0 0 0 1 1 0 1 1 72
DONALDSON COMPANY, INC. 0 0 0 0 0 0 1 0 0 0 0 1 1 2 0 0 0 0 0 1 1 0 0 1 0 1 2 0 2 0 3 6 2 8 5 7 7 7 3 2 0 3 66
DOW CHEMICAL COMPANY 0 1 2 0 0 3 1 1 1 2 0 2 1 1 2 1 2 1 3 5 8 6 5 6 5 2 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 64
MEMBRANE TECHNOLOGY & RESEARCH, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 3 2 4 4 3 2 5 4 3 9 4 2 0 3 9 0 2 0 0 1 2 1 64
PHILLIPS PETROLEUM COMPANY 4 6 5 4 2 2 2 3 2 1 2 3 1 3 3 2 4 2 2 3 0 1 1 0 2 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 63
SHELL OIL COMPANY 1 2 0 1 3 0 3 1 2 1 0 0 0 2 2 4 3 3 2 4 3 1 0 1 1 1 0 0 0 0 0 2 2 0 2 1 1 1 0 0 9 3 62
METALLGESELLSCHAFT AKTIENGESELLSCHAFT 1 4 2 0 2 1 2 2 3 2 2 2 1 1 3 0 1 1 4 1 6 0 1 6 1 0 1 1 1 0 1 1 0 2 0 0 0 0 0 0 0 0 56
E. I. DU PONT DE NEMOURS AND COMPANY 1 2 1 1 1 2 1 0 2 1 0 0 0 0 0 0 0 0 1 2 3 3 8 0 4 3 1 0 0 0 3 3 1 0 1 1 0 0 2 0 0 0 48
GENERAL ELECTRIC COMPANY 2 1 2 1 2 0 0 3 0 1 1 3 0 4 1 0 0 2 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 2 0 1 0 1 3 4 2 8 46
UNITED STATES OF AMERICA, DEPARTMENT OF ENERGY 1 2 1 0 1 1 4 4 2 4 0 0 3 0 0 1 0 0 1 1 0 1 0 3 1 1 0 0 1 0 2 0 1 0 3 1 1 1 1 0 0 2 45
INSTITUT FRANCAIS DU PETROLE 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 4 2 0 0 0 1 0 0 5 4 2 4 0 3 2 0 1 5 3 0 1 39
BASF AKTIENGESELLSCHAFT 2 2 2 0 0 0 0 0 1 1 1 0 2 1 1 0 2 1 1 0 0 0 1 0 0 1 0 0 0 1 0 0 1 2 0 1 3 3 1 1 2 3 37
ADVANCED TECHNOLOGY MATERIALS, INC. 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 0 0 1 1 3 2 4 1 4 6 4 1 3 0 1 1 0 35
MONSANTO COMPANY, INC. 3 2 1 0 2 0 0 0 0 2 1 5 3 1 0 4 2 2 1 0 1 0 1 0 0 0 0 0 1 2 0 1 0 0 0 0 0 0 0 0 0 0 35
ALLIED-SIGNAL INC. 1 2 1 2 0 3 1 0 0 1 0 0 0 1 0 1 0 0 0 3 4 1 1 2 1 1 0 0 0 3 2 0 0 0 0 1 0 0 0 0 0 0 32
EXXON RESEARCH + ENGINEERING CO. 1 0 1 2 0 0 0 1 1 1 0 1 5 4 1 3 0 1 1 0 1 0 2 0 0 1 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 30
TEXACO INC. 0 0 1 1 2 1 0 0 1 0 0 0 0 2 0 0 0 0 1 0 2 2 1 2 3 1 0 0 0 2 2 1 0 1 1 0 1 0 0 0 0 0 28
CONOCO, INC. 6 4 1 2 4 1 0 0 1 2 0 0 0 0 1 1 0 0 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 27
ELECTRIC POWER RESEARCH INSTITUTE, INC. 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 1 0 0 0 1 0 2 1 1 0 0 1 0 1 2 1 1 1 2 3 0 3 0 1 0 2 27
BAYER AKTIENGESELLSCHAFT 0 0 0 2 2 1 0 0 3 1 2 1 0 1 0 1 1 1 0 0 1 1 2 1 0 1 0 0 1 0 2 0 0 0 1 0 0 0 0 0 0 0 26
THE BOC GROUP PLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 2 1 0 3 0 2 3 2 1 7 0 0 0 1 0 0 0 0 1 0 0 25
PALL CORPORATION 1 1 0 0 0 0 0 0 0 1 0 2 0 3 0 0 1 2 1 0 1 1 1 1 1 1 2 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 23
BERGWERKSVERBAND GMBH 0 0 0 0 1 1 0 1 4 0 0 0 1 0 3 2 1 3 0 1 0 0 0 3 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22
HOECHST AKTIENGESELLSCHAFT 0 0 3 0 2 0 1 0 1 0 2 0 2 1 0 1 0 0 1 0 0 1 1 0 0 1 1 0 2 1 1 0 0 0 0 0 0 0 0 0 0 0 22
MOBIL OIL CORP. 0 0 2 3 1 1 1 1 0 0 0 0 0 0 0 1 1 0 1 1 2 1 0 0 1 0 0 0 1 0 0 2 2 0 0 0 0 0 0 0 0 0 22
UNITED TECHNOLOGIES CORPORATION 0 0 0 1 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 1 0 1 0 0 2 0 0 1 0 0 0 1 1 0 0 1 2 2 4 2 1 22
BATTELLE MEMORIAL INSTITUTE 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 1 1 1 0 7 2 1 1 0 0 1 0 19
NALCO CHEMICAL COMPANY 0 0 0 1 0 0 0 1 1 1 3 1 0 1 2 1 1 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 19
SIEMENS AKTIENGESELLSCHAFT 1 1 0 1 0 1 0 0 0 1 0 0 0 1 1 1 1 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1 1 0 0 1 1 1 0 0 1 2 19
AMERICAN AIR LIQUIDE, 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 0 0 0 0 0 1 3 1 2 3 0 2 0 0 2 0 2 0 17
BEND RESEARCH INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 2 1 0 1 2 3 0 1 0 2 2 0 1 0 0 0 0 0 0 0 0 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 1 1 4 4 1 2 0 1 0 0 1 1 16
ENGELHARD CORPORATION 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 1 2 2 4 4 0 0 0 0 0 0 0 16
HEWLETT-PACKARD COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 2 0 0 3 1 1 0 2 1 0 1 0 0 0 0 0 0 0 0 16
HONEYWELL 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 0 0 1 2 1 0 0 3 4 1 2 2 16
BABCOCK & WILCOX COMPANY 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 1 3 1 1 2 0 0 2 0 0 1 0 0 0 0 0 0 14
CHEVRON RESEARCH & TECHNOLOGY CO. 1 0 0 0 1 1 0 1 1 0 0 0 1 2 1 0 1 1 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14
IMPERIAL CHEMICAL INDUSTRIES PLC 0 1 2 1 2 1 0 0 0 0 0 0 0 0 0 0 0 1 1 2 0 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 14
SAMSUNG ELECTRONICS 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 2 2 2 0 0 1 2 2 1 1 0 0 1 14
CATERPILLAR INC. 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 0 0 1 0 0 0 0 0 1 1 2 1 5 0 1 13
GAS RESEARCH INSTITUTE 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 3 2 0 1 2 0 2 0 1 0 0 0 0 0 0 0 0 13
HAMILTON SUNDSTRAND 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 0 1 1 2 2 0 2 2 1 2 13
MITSUBISHI JUKOGYO KABUSHIKI KAISHA 1 0 0 0 0 0 0 0 2 1 0 0 0 0 1 1 0 0 0 0 2 0 2 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 13
ALSTOM TECHNOLOGY 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 0 0 0 1 2 1 4 1 3 12
BENDIX COMMERCIAL VEHICLE SYSTEMS LLC. 0 0 0 0 0 0 0 0 0 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 5 3 0 0 0 2 0 12
HITACHI, LTD 2 0 0 0 1 1 1 1 0 1 0 0 0 1 0 0 0 0 1 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
UBE INDUSTRIES LTD. 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 1 2 0 0 1 0 0 0 1 3 12
UNION CARBIDE INDUSTRIAL GASES TECHNOLOGY CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
W. R. GRACE & CO.-CONN. 0 2 1 0 0 0 2 1 1 1 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 12
BOEING COMPANY 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 0 0 0 0 1 0 0 0 1 1 0 0 3 0 3 11
CORNING INCORPORATED 2 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 1 0 0 0 1 0 0 0 0 0 0 3 1 1 11
JAPAN AS REPRESENTED BY DIRECTOR GENERAL OF AGENCY OF INDUSTRIAL SCIENCE AND TECHNOLOGY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 0 0 0 1 0 0 3 0 0 0 2 2 0 0 0 0 0 0 0 0 11
ORECK HOLDINGS LLC 0 0 0 0 0 0 0 0 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 0 1 2 3 1 2 11
TAIWAN SEMICONDUCTOR MANUFACTURING 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 1 3 1 2 0 1 1 1 1 0 0 0 0 11
UNIVERSITY OF TEXAS 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 1 0 0 0 0 0 0 1 0 1 1 0 1 3 0 1 0 11
CHEVRON U.S.A. 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 2 1 1 0 2 4 0 0 0 10
FUJI PHOTO FILM CO., LTD 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 1 1 1 0 1 1 0 0 0 0 10
INGERSOLL-RAND COMPANY 0 0 2 1 1 1 0 1 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 1 0 0 0 0 0 0 0 0 10
MATHESON TRI-GAS, 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 1 0 2 0 3 1 2 0 1 0 0 10
MITSUBISHI HEAVY INDUSTRIES, 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 1 1 1 0 1 2 0 2 1 0 0 1 10
NGK INSULATORS 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 1 0 0 0 0 0 0 0 1 1 1 0 1 1 0 0 1 2 10
NIPPON SANSO K.K. 0 0 0 0 0 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 0 1 1 2 3 0 0 0 0 0 0 10
UNITED STATES OF AMERICA, NAVY 0 0 1 1 0 1 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 1 1 0 0 0 0 1 0 0 10
UNIVERSITY OF CALIFORNIA, THE REGENTS OF 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 1 0 0 0 0 0 1 1 2 1 1 1 1 0 0 0 0 10
WESTINGHOUSE ELECTRIC CORP. 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 4 2 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10
COMBUSTION ENGINEERING INC. 0 1 0 0 0 0 1 2 0 0 1 0 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 0 0 0 0 9
FMC CORPORATION 0 0 0 0 0 1 0 0 0 0 0 0 0 2 0 0 0 1 0 2 0 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
LITTON SYSTEMS INC. 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 0 0 1 2 0 0 2 1 2 0 0 0 0 0 0 9
STANDARD OIL COMPANY 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 1 2 1 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
TAIYO NIPPON SANSO 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 0 0 0 0 3 0 2 0 1 3 9
UHDE GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 3 9
UNITED STATES OF AMERICA, NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 0 0 1 1 0 1 0 0 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 2 1 1 0 0 0 9
A. AHLSTROM CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 0 2 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
AB SVENSKA FLAKTFABRIKEN 2 0 0 0 0 0 1 0 1 0 0 1 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 8
ALCOA INC. 0 1 0 0 1 0 0 2 0 1 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
ATLANTIC RICHFIELD COMPANY 1 0 1 0 0 0 0 0 0 0 0 0 1 0 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
CIBA-GEIGY CORPORATION 0 1 2 0 0 0 1 0 0 0 0 0 2 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 8
ENTEGRIS, 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 1 0 5 2 0 8
FLAKT AB 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 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 8
FLUOR TECHNOLOGIES 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 0 0 0 0 1 0 2 0 5 0 8
INSTITUTE OF GAS TECHNOLOGY 0 0 0 0 0 1 0 0 1 0 0 0 1 1 1 0 1 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 8
KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH 0 0 0 0 0 0 0 0 0 0 0 1 2 0 1 0 1 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
KOPPERS COMPANY INC. 1 1 2 1 0 0 0 0 0 0 0 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 8
NORDSON CORPORATION 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 2 1 0 1 0 0 0 1 0 0 0 0 0 0 0 8
NORSK HYDRO ASA 0 0 0 0 0 0 0 0 0 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 0 2 1 1 0 8
PERKINELMER LAS, 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 2 3 2 1 8
PERMEA INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 2 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 8
RESEARCH-COTTRELL, INC. 0 1 2 2 0 0 0 0 0 0 0 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 0 0 0 8
ROHM AND HAAS COMPANY 0 0 0 0 1 2 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 8
STANDARD OIL CORPORATION (INDIANA) 0 0 0 0 0 4 1 1 1 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 0 0 0 8
SUMITOMO SEIKA CHEMICALS CO., LTD. 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 0 0 1 0 1 0 0 0 0 1 0 1 0 0 1 0 0 8
TELLER ENVIRONMENTAL SYSTEMS, INC. 0 0 0 0 1 2 0 1 1 0 0 0 0 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 8
UNITED STATES OF AMERICA, ENVIRONMENTAL PROTECTION AGENCY 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 1 0 2 0 0 0 0 0 0 0 1 0 0 8
AGILENT 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 0 0 0 0 0 0 0 2 1 1 0 0 2 0 1 0 0 7
AMOCO CORPORATION 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 1 0 0 1 1 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 7
ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP 0 0 0 0 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 0 0 0 1 4 7
BASF 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 0 5 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 7
BOC LIMITED 0 0 0 0 0 0 0 0 0 1 3 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 0 0 0 0 0 0 7
CALGON CARBON CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 1 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 7
CALGON CORPORATION 0 0 0 0 1 0 0 1 0 2 0 0 0 0 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 7
CARLO ERBA S.P.A, 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 1 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 7
COMMISSARIAT A L'ENERGIE ATOMIQUE 1 0 1 1 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 1 0 0 1 0 0 0 0 0 0 0 0 7
DELPHI 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 0 0 0 0 0 0 0 0 2 0 1 0 0 1 2 0 1 7
EASTMAN KODAK COMPANY 0 1 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 7
EBARA RESEARCH CO. LTD. 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 0 0 0 1 0 0 1 0 1 1 1 0 0 0 0 7
ENVIROCARE 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 2 0 1 1 0 0 1 0 1 1 0 0 0 0 0 7
GAF CHEMICALS CORPORATION 0 0 0 0 6 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 0 7
H2GEN INNOVATIONS, 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 3 2 0 0 0 0 2 7
JOHN ZINK COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 1 3 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 7
LUMMUS COMPANY 0 0 0 1 0 2 0 1 1 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 0 0 0 0 0 0 0 0 7
NITROTEC CORPORATION 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 2 1 2 1 0 0 0 0 0 0 0 0 0 0 0 7
NITTO DENKO CORPORATION 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 1 0 0 1 0 0 1 0 0 1 0 0 0 0 0 1 7
PARKER-HANNIFIN 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 0 0 0 0 0 0 0 0 0 1 2 2 1 0 7
TAKEDA CHEMICAL INDUSTRIES LTD. 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1 0 1 0 0 0 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
TOKYO ELECTRON LIMITED 0 0 0 0 0 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 1 1 0 1 0 0 1 0 1 0 7
VBM CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 1 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
ABB FLAKT AB 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 1 1 0 1 0 0 0 0 0 0 0 0 0 0 6
ADA ENVIRONMENTAL SOLUTIONS, LLC 0 0 0 0 0 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 1 0 0 1 0 0 0 1 0 1 6
ALFA LAVAL CORPORATE AB 0 0 0 0 0 0 0 0 0 0 0 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 2 1 0 0 1 6
BAXTER INTERNATIONAL INC. 0 0 0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 6
CECA 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 0 0 1 3 0 1 0 0 0 1 0 6
EUROPEAN ATOMIC ENERGY COMMUNITY EURATOM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 0 0 1 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 6
EXXONMOBIL CHEMICAL PATENTS 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 1 0 1 1 1 1 1 6
EXXONMOBIL RESEARCH AND ENGINEERING 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 0 1 0 1 0 0 0 0 2 2 6
GAS TECHNOLOGY 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 0 0 0 0 0 0 1 0 2 0 0 1 2 0 6
GENERAL MOTORS CORPORATION 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 0 0 0 1 2 1 1 0 0 0 0 6
GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH 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 0 1 0 0 0 1 1 0 0 0 0 0 0 0 0 1 6
JAPAN PIONICS 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 0 0 1 0 2 2 0 0 0 0 0 0 0 0 6
MIDWEST RESEARCH INSTITUTE 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 1 0 0 0 6
NIPPON STEEL CORP. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 6
RHONE-POULENC S.A. 2 0 1 1 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 0 0 0 0 0 0 0 0 6
SAES PURE GAS, 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 1 0 0 0 0 1 0 1 1 0 1 0 0 0 0 0 0 6
SANDIA 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 1 0 0 0 2 1 0 0 0 1 1 0 6
SEITETSU KAGAKU CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
TOSHIBA CORPORATION 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 1 0 0 1 0 1 0 0 0 0 6
TOSOH 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 1 2 0 0 0 0 0 0 0 6
ABCOR, INC. 1 2 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 0 0 0 0 0 0 0 0 0 0 0 0 0 5
AIRSEP CORPORATION 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 0 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 5
AMERICAN AIR FILTER COMPANY, INC. 0 1 0 0 1 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 0 0 0 0 0 0 0 0 0 5
ANDREW CORPORATION 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 1 0 1 0 0 0 0 1 0 0 0 0 0 0 5
ASAHI GLASS COMPANY, LTD. 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 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5
BETZ LABORATORIES INC. 0 0 0 0 0 0 2 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 0 0 0 0 0 0 0 0 0 0 5
BOLIDEN AKTIEBOLAG 0 0 0 0 0 1 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 5
CALIFORNIA INSTITUTE OF TECHNOLOGY 0 0 0 2 0 0 0 0 0 0 0 0 0 0 1 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 0 0 5
CARRIER CORPORATION 0 0 0 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 0 0 1 0 0 0 0 0 0 2 0 0 0 5
CONOCOPHILLIPS 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 0 0 0 1 0 0 0 0 1 3 5
DOW CORNING CORPORATION 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 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 5
DUPONT CANADA INC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
FLEETGUARD, 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 2 0 0 1 0 1 0 1 5
FLUOR CORPORATION 0 0 2 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 1 0 0 1 0 0 0 0 0 0 0 5
G.B.D. 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 0 0 0 0 0 0 0 3 2 0 0 0 0 0 0 0 0 5
GULF RESEARCH AND DEVELOPMENT COMPANY 0 0 0 0 0 4 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 5
IDATECH LLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 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
INTERNATIONAL BUSINESS MACHINES CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 1 0 0 5
INVACARE 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 2 0 0 0 0 0 0 0 1 1 0 1 5
KERNFORSCHUNGSANLAGE JULICH GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
KRUPP KOPPERS GMBH 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 5
L'AIR LIQUIDE, 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 3 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 5
MALONEY-CRAWFORD TANK CORPORATION 0 1 0 2 0 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 0 0 0 0 0 0 0 0 5
MINNESOTA MINING AND MANUFACTURING COMPANY 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
MYKROLIS 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 0 0 1 0 1 3 0 0 0 0 5
N.V. BEKAERT S.A. 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 0 0 0 0 0 0 0 0 0 0 1 0 3 0 0 0 0 5
NATIONAL TANK COMPANY 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 0 0 0 0 1 1 0 2 0 0 0 0 5
NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO 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 1 1 0 0 1 0 0 0 0 0 0 1 0 5
NEW JERSEY INSTITUTE OF 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 0 0 0 0 1 2 0 0 0 1 0 0 0 0 1 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 0 0 0 5
OLIN CORPORATION 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 5
PERRY EQUIPMENT 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 0 1 2 0 0 0 1 5
PPG INDUSTRIES INC. 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
QUESTAIR 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 0 0 0 0 0 0 0 0 0 2 0 1 0 2 0 0 0 5
ROBERT BOSCH 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 2 1 0 1 1 0 0 0 5
ROCKWELL INTERNATIONAL CORPORATION 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
SNAM PROGETTI S.P.A. 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 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 5
SOCIETE NATIONALE ELF AQUITAINE (PROD.) 0 0 0 0 0 0 0 0 1 0 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 5
SY-KLONE COMPANY, 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 1 1 0 0 0 1 0 1 0 0 5
UNITED STATES OF AMERICA, ARMY 0 0 0 0 0 0 0 0 0 0 0 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 0 2 5
UNITED STATES OF AMERICA, DEPARTMENT OF THE INTERIOR 1 0 0 1 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 0 0 1 0 0 0 0 0 0 0 0 0 5
WAHLCO, INC 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
WESTVACO CORPORATION 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
WILHELM ENVIRONMENTAL 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 2 2 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5


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