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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

Patenting In Technology Classes,
Breakout By Organization

Count of 1969 - 2004 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 104, Railways

( 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 Total
~Individually Owned Patent 55 49 67 43 60 64 61 31 26 20 17 24 20 16 13 14 11 22 30 21 17 23 27 20 14 16 24 20 25 22 18 14 20 29 23 21 997
FRANZ PLASSER BAHNBAUMASCHINEN-INDUSTRIE GMBH 1 0 1 1 3 1 3 7 7 11 6 8 15 7 5 9 5 14 4 7 11 10 9 11 8 6 9 5 11 3 3 4 4 10 9 5 233
SI HANDLING SYSTEMS, INC. 5 5 4 0 2 1 1 0 4 4 2 0 0 11 5 4 2 7 3 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 63
POMAGALSKI S.A. 0 0 0 0 0 2 0 1 0 0 1 1 3 1 0 1 0 2 8 4 1 2 0 4 2 0 4 4 1 0 0 0 2 0 1 0 45
JERVIS B. WEBB COMPANY 4 4 2 4 2 2 0 1 0 1 0 0 0 1 1 2 0 3 2 2 0 1 0 1 0 0 0 1 1 0 1 1 0 3 1 0 41
SIEMENS AKTIENGESELLSCHAFT 0 0 0 0 2 10 12 4 1 0 1 0 2 1 2 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 40
AMERICAN CHAIN + CABLE COMPANY, INC. 5 5 3 5 3 0 3 1 3 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 0 0 32
KRAUSS-MAFFEI AKTIENGESELLSCHAFT 0 0 0 0 3 10 6 4 1 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 26
TOSHIBA CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 4 7 6 1 2 0 0 1 0 0 0 0 1 0 0 0 0 24
DAIFUKU CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 2 4 1 2 0 1 3 2 1 0 1 0 1 1 2 0 23
TSUBAKIMOTO CHAIN CO. 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2 1 1 2 1 2 2 4 0 0 0 0 1 1 1 0 1 1 2 0 0 23
REXNORD INC. 0 0 2 1 3 9 2 2 0 1 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 22
BERTIN + CIE PLAISIR 3 2 9 1 3 2 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 21
CANRON, INC. 0 0 0 0 1 2 5 2 0 4 1 2 2 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21
FMC CORPORATION 2 2 7 3 4 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 21
HITACHI, LTD 0 0 1 1 0 3 5 2 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 2 2 2 0 0 0 0 0 0 0 0 0 0 20
MESSERSCHMITT-BOLKOW-BLOHM GMBH 0 0 1 0 1 9 0 1 0 0 0 3 0 0 1 0 1 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19
NAKANISHI METAL WORKS CO., LTD. 0 0 1 0 0 0 2 0 0 0 0 0 2 1 1 5 2 0 0 1 1 0 0 1 0 0 0 0 0 0 0 1 0 0 1 0 19
TRACKED HOVERCRAFT LIMITED 0 0 9 6 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 0 19
DAIMLER-BENZ AKTIENGESELLSCHAFT 0 0 0 0 0 0 0 0 0 1 0 3 6 1 2 0 0 2 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 18
MID-WEST CONVEYOR COMPANY, INC. 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 1 0 5 5 0 0 1 0 2 1 0 0 0 0 0 0 0 18
MANNESMANN AG 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 1 2 0 1 3 0 1 1 0 1 0 2 2 0 0 0 17
MATISA MATERIAL INDUSTRIES S.A. 2 0 1 2 0 1 0 0 1 0 0 3 0 0 0 0 1 3 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 17
VOUGHT CORPORATION 0 0 0 1 4 6 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 0 0 16
GERBER GARMENT TECHNOLOGY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 0 2 6 2 0 0 0 0 0 0 0 0 0 0 0 0 0 14
JAPANESE NATIONAL RAILWAYS 1 0 1 1 1 4 4 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 0 0 14
SCHWEIZERISCHE INDUSTRIE-GESELLSCHAFT 0 0 0 0 1 1 0 0 0 0 0 0 0 4 1 6 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14
HARSCO CORPORATION 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 1 1 0 3 1 2 1 0 0 0 0 0 13
SOCIETE DE L AEROTRAIN 0 2 8 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 13
WALT DISNEY COMPANY 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 4 0 4 1 0 0 0 0 0 0 13
RAILWAY TECHNICAL RESEARCH INSTITUTE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 3 3 0 1 3 0 0 0 0 0 0 0 12
ROHR INDUSTRIES INC. 0 0 0 0 4 7 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 12
UNITED STATES OF AMERICA, DEPARTMENT OF ENERGY 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 4 3 0 2 0 0 0 0 0 0 0 0 12
CINCINNATI BUTCHERS SUPPLY CO. 1 2 0 0 0 4 0 0 2 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 11
DEMAG AKTIENGESELLSCHAFT 0 0 0 1 1 0 1 2 2 1 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 11
FORD MOTOR COMPANY 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 0 1 0 2 2 0 0 0 0 3 0 11
HARSCO 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 1 0 2 1 1 6 0 11
IDEAL TOY CORPORATION 2 0 0 0 0 0 0 0 0 4 2 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 11
RACINE RAILROAD PRODUCTS, INC. 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 2 0 1 2 1 0 1 0 1 0 0 0 0 11
AEG WESTINGHOUSE TRANSPORTATION SYSTEMS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 3 0 0 0 0 0 0 0 0 0 0 0 0 0 10
CANRON CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10
GOODYEAR TIRE + RUBBER COMPANY 0 0 0 0 2 4 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 10
TAMPER INC. 2 1 4 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 10
BELANGER INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 1 0 2 1 0 1 0 0 0 0 0 0 0 0 0 9
KONRAD DOPPELMAYER & SOHN MASCHINENFABRIK GESELLSCHAFT MBH & CO KG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 2 1 0 0 0 1 0 1 1 1 0 0 0 0 0 9
NISSAN MOTOR COMPANY, LIMITED 0 0 0 0 0 0 0 0 3 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 0 9
NORDCO 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 0 2 1 2 9
THYSSEN INDUSTRIE AKTIENGESELLSCHAFT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 1 0 1 1 0 2 0 0 0 1 0 0 0 0 0 0 9
WESTINGHOUSE AIR BRAKE COMPANY 0 1 0 1 1 1 2 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 9
AEROBUS 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 1 0 1 5 0 1 0 8
AUTRAN 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 3 1 1 1 1 0 1 0 8
BURO PATENT AG 0 1 0 1 0 1 0 0 1 1 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
GEO. W. KING LIMITED 1 0 0 2 1 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
JACKSON VIBRATORS, INC. 0 2 1 0 4 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 8
M.A.N.-MASCHINENFABRIK AUGSBURG-NURNBERG AKTIENGESELLSCHAFT 0 0 0 0 1 1 1 1 3 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 8
NUTTING TRUCK AND CASTER COMPANY 3 0 0 1 0 3 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 8
OAK INDUSTRIES INC. 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 2 2 0 0 0 0 0 0 0 0 8
RAPISTAN INCORPORATED 0 0 2 2 1 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 0 0 8
ROCKWELL INTERNATIONAL CORPORATION 2 0 1 1 1 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 8
VON ROLL TRANSPORTSYSTEME AG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 1 2 0 0 0 0 0 0 0 0 0 0 0 0 8
EATON CORPORATION 0 0 1 2 2 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 0 7
GENERAL SIGNAL CORPORATION 0 0 0 0 0 1 4 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 0 0 0 0 7
INNOVA PATENT 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 2 4 1 7
JAPAN AIR LINES CO., LTD. 0 0 0 0 0 0 0 0 2 2 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 7
KAWASAKI JUKOGYO KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 1 1 2 0 1 0 0 0 0 0 0 0 7
KERSHAW MANUFACTURING COMPANY, IND. 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 7
LEITNER S.P.A. 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 0 0 0 1 2 0 0 7
LES FILS D AUGUSTE SCHEUCHZER S. A. 0 0 0 0 0 0 0 0 2 0 0 0 1 0 0 1 0 1 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 7
LORAM MAINTENANCE OF WAY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 0 0 0 0 0 1 0 2 0 0 0 0 0 0 0 0 0 1 7
PULLMAN, INCORPORATED 0 0 0 1 1 3 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 7
SHINKO ELECTRIC CO., LTD. 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 2 2 0 0 1 0 0 0 0 7
STANDARD ALLIANCE INDUSTRIES 1 0 0 4 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 0 0 0 7
WESTINGHOUSE ELECTRIC CORP. 0 1 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 0 0 0 0 0 7
ABEX CORPORATION 0 0 0 0 1 1 1 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 6
ALDEN SELF-TRANSIT SYSTEMS CORPORATION 0 1 0 4 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
CLARK EQUIPMENT COMPANY, INC. 0 0 1 2 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 6
HOLLEY ENGINEERING COMPANY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 6
HOVERCRAFT DEVELOPMENT LIMITED 2 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 0 0 0 0 0 0 6
MASSACHUSETTS INSTITUTE OF TECHNOLOGY 0 0 0 1 1 2 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 0 0 0 0 6
MERLIN GERIN S.A. 0 1 1 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 0 0 6
TRANSPORTATION TECHNOLOGY, INC. 0 0 0 3 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 6
UNIFLO SYSTEMS COMPANY 0 0 0 0 3 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 6
BRITISH GAS CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 0 0 0 0 5
FIRMA ANTON SCHWARZKOPF 0 0 0 0 0 1 1 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 0 0 0 5
GENERAL ELECTRIC COMPANY 0 0 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 0 0 0 1 1 0 0 5
GENERAL MOTORS CORPORATION 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 5
MCNEIL CORPORATION 0 0 1 0 0 1 2 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 5
METEORO AMUSEMENT 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 1 0 0 1 2 1 0 5
MORRISON-KNUDSEN COMPANY, INC. 0 0 1 1 0 0 1 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 5
MURATA KIKAI KABUSHIKI KAISHA 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 0 0 0 1 1 1 5
POMA . S.A. 0 0 0 0 0 3 0 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 5
POWER SUPERCONDUCTOR APPLICATIONS CO., 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 1 0 2 0 2 0 0 0 0 0 5
REDMAN FISHER ENGINEERING LIMITED 0 0 0 0 0 0 4 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
REPUBLIC CORPORATION 0 3 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 5
ROCKFORD AUTOMATION, INC. 0 0 0 0 0 0 4 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
TOMY COMPANY, LTD. 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 5
TSUBAKIMOTO CHAIN MFG. CO., LTD. 1 1 0 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 0 0 0 0 0 5
UNIVERSITY OF MINNESOTA, THE REGENTS OF 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
USX CORPORATION 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 0 0 0 0 0 0 0 0 0 5
WESTERN-CULLEN-HAYES, 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 1 1 3 0 0 0 5


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