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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 172, Earth Working

( 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 97 101 81 62 81 76 51 56 83 80 61 70 58 58 36 52 49 53 34 28 56 50 33 39 34 38 49 47 42 65 51 54 49 41 33 32 1980
DEERE + COMPANY 17 17 19 11 18 9 3 8 6 8 4 7 8 9 5 9 16 10 9 9 14 5 5 4 4 7 10 8 5 9 9 5 10 8 8 15 328
CATERPILLAR INC. 8 7 8 7 9 9 6 9 22 16 9 7 3 4 0 1 0 1 1 0 3 2 2 0 0 1 5 4 7 5 6 13 8 2 1 0 186
CASE CORPORATION 0 0 0 0 0 0 5 6 4 8 1 6 4 3 3 1 2 2 6 4 7 6 5 2 7 3 4 5 3 3 2 10 7 3 3 5 130
NAVISTAR INTERNATIONAL TRANSPORTATION CORP. 11 11 10 16 4 3 6 3 4 1 7 6 2 8 6 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 102
ALLIS-CHALMERS CORPORATION 4 6 7 5 7 7 4 1 2 3 2 3 6 5 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 65
FLEXI-COIL LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 2 1 1 0 0 1 0 0 1 1 3 5 20 10 2 0 49
C. VAN DER LELY N. V. 0 0 0 0 0 0 0 0 12 10 3 5 4 3 4 3 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 46
MASSEY-FERGUSON INC. 10 9 6 2 0 4 5 0 1 1 2 2 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 45
J. J. BAKER COMPANY LIMITED 2 13 8 6 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 0 0 0 0 0 33
KABUSHIKI KAISHA KOMATSU SEISAKUSHO 0 0 0 0 2 0 1 2 3 3 2 0 2 0 0 1 1 0 0 0 0 1 0 1 0 2 2 9 1 0 0 0 0 0 0 0 33
DMI INC. 0 0 0 0 0 0 1 0 4 1 0 0 3 0 3 3 5 0 0 0 0 0 0 1 0 1 2 1 0 0 0 0 0 0 0 0 25
KENT MANUFACTURING CO., INC. 0 0 0 0 0 0 0 1 5 0 0 2 1 2 1 1 1 1 0 0 0 0 1 1 0 1 2 0 0 0 0 0 0 0 0 0 20
KUBOTA LTD. 0 0 0 0 0 0 0 0 0 0 0 2 4 1 1 0 4 1 1 1 1 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 20
OUTBOARD MARINE CORPORATION 0 0 0 1 1 1 0 0 0 1 2 1 0 1 0 0 2 2 2 4 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20
ORTHMAN MANUFACTURING CO., INC. 0 0 0 0 4 0 2 1 1 2 0 2 0 1 0 1 1 0 0 0 0 0 0 0 1 0 0 1 1 0 0 1 0 0 0 0 19
CLARK EQUIPMENT COMPANY, INC. 1 3 0 3 1 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 1 1 0 1 17
JEAN WALTERSCHEID GMBH 0 0 0 0 0 1 1 2 1 0 2 2 0 0 0 0 0 0 0 0 1 1 3 0 0 2 0 0 0 0 0 0 0 0 0 0 16
KVERNELAND KLEPP AS 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 4 3 1 2 1 0 1 0 16
HESSTON CORPORATION 0 0 0 0 1 0 0 1 1 2 1 4 0 1 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14
HINIKER COMPANY 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 5 3 1 0 0 1 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 13
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 1 0 0 0 0 0 0 0 0 0 0 2 1 0 0 1 3 5 13
KENNAMETAL INC. 0 1 1 0 0 0 0 1 0 0 0 1 0 2 0 0 0 0 1 1 0 0 0 1 0 3 0 0 0 1 0 0 0 0 0 0 13
KOMATSU 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 1 2 6 2 1 1 0 0 13
MASSEY-FERGUSON SERVICES N.V. 1 1 0 1 0 0 0 0 0 2 2 0 2 0 0 0 0 1 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 13
SUKUP MANUFACTURING COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 3 2 3 1 0 0 1 0 1 0 0 0 0 0 0 12
ACRA-PLANT, INC. 0 1 0 0 1 0 0 0 0 0 0 0 2 1 0 3 0 0 0 0 1 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 11
CHROMALLOY AMERICAN CORPORATION 0 0 0 0 0 0 0 0 4 0 0 0 0 2 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
EVERSMAN MFG. COMPANY 0 1 1 1 1 0 0 0 0 0 0 2 0 0 1 1 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
KINZE MANUFACTURING, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 1 1 0 0 1 0 1 2 1 0 0 1 0 0 0 11
BROUWER TURF EQUIPMENT LIMITED 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 1 1 0 1 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10
KRAUSE PLOW CORPORATION, INC. 0 0 0 0 0 1 1 0 0 0 0 1 1 1 0 0 1 0 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 10
MTD 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 0 0 0 0 0 0 3 0 0 2 2 2 10
UNVERFERTH MANUFACTURING COMPANY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 1 0 2 1 0 2 1 0 0 0 10
FORD MOTOR COMPANY 0 1 1 0 3 0 0 0 0 0 1 0 0 1 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
KOEHRING CORPORATION 0 0 0 0 0 1 4 0 1 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
BLACK & DECKER INC. 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 1 2 0 1 0 8
GKN WALTERSCHEID 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 1 1 0 2 0 0 2 0 1 1 8
GREAT PLAINS MANUFACTURING INCORPORATED 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 1 1 0 1 0 0 0 0 0 8
KEVOTEK OY 0 1 1 4 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 8
KUHN S.A. 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 3 1 1 1 0 0 0 0 0 0 0 0 0 0 1 0 8
MORRIS ROD-WEEDER CO., LTD. 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2 1 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
ROBERT BOSCH GMBH 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
TORO COMPANY 0 0 0 0 0 1 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 1 1 1 0 8
YETTER MANUFACTURING COMPANY 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 1 0 1 1 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 8
ADAMS HARD-FACING COMPANY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
EXCEL INDUSTRIES, INC. 0 0 0 0 0 0 1 0 1 0 0 2 1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
KABUSHIKI KAISHA TOPCON 0 0 0 0 0 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 4 0 0 7
KAWASAKI JUKOGYO 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 4 1 0 1 0 0 0 0 0 0 0 1 0 7
KONGSKILDE KONCERNSELSKAB A/S 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 2 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
KUBOTA 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 1 1 1 0 0 3 1 0 0 0 7
ROPER CORPORATION 0 0 0 0 1 0 0 0 0 0 0 0 0 0 4 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
UNITED STATES OF AMERICA, DEPARTMENT OF AGRICULTURE 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 1 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 1 1 0 7
A.I.L., INC. 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 0 1 0 1 0 0 1 0 0 0 6
ALLOWAY MANUFACTURING INC. 0 0 0 1 0 0 0 1 2 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 6
AMERICAN PRODUCTS, INC. 1 3 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 6
DAWN EQUIPMENT 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 1 0 0 4 0 1 0 0 0 0 0 0 6
DYNAMICS CORPORATION OF AMERICA 0 0 0 0 0 0 0 0 0 0 2 1 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
FIAT TRATTORI S.P.A. 0 0 0 0 0 0 0 0 1 0 0 0 3 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
GENERAL MOTORS CORPORATION 0 1 1 2 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 6
GILSON BROTHERS COMPANY 0 0 1 0 0 0 0 0 2 1 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 6
KLOCKNER-HUMBOLDT-DEUTZ AKTIENGESELLSCHAFT 0 0 0 0 1 2 0 0 0 0 1 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
M + W GEAR COMPANY 0 1 0 0 1 0 0 0 0 0 0 0 1 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
NEW HOLLAND NORTH AMERICA, 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 0 0 1 3 1 6
RALPH MCKAY LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
WESTINGHOUSE AIR BRAKE COMPANY 0 1 0 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 6
WHITE FARM EQUIPMENT COMPANY 0 0 0 1 2 0 0 0 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 6
AGCO 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 1 0 1 2 1 5
ALLIED PRODUCTS CORP. 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 1 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
AMERICAN TRACTOR EQUIPMENT CORPORATION 1 2 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 5
CMI CORPORATION 0 0 2 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
DEUTZ-ALLIS CORPORATION 0 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 5
FLEISCHER MANUFACTURING, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 5
FMC CORPORATION 0 1 1 1 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 5
GEURTS INC. 0 0 0 0 1 1 1 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 5
H. NEIMEYER SOHNE GMBH & CO. KG 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 5
HONEYWELL INC. 0 0 0 1 0 0 1 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 5
IOWA STATE UNIVERSITY RESEARCH FOUNDATION INC. 0 0 0 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 1 1 0 0 0 0 0 5
KVERNELAND A/S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
LANDOLL CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 1 0 0 1 0 0 1 0 0 0 0 0 0 5
MASCHINENFABRIK RAU OHG 1 0 1 0 0 0 0 0 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 5
RAYGO INC. 0 2 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 0 0 5
SUNFLOWER MANUFACTURING COMPANY, INC. 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 2 0 0 1 1 0 0 0 5
TURFCO MANUFACTURING, INC. 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 1 0 1 0 0 0 0 0 1 5


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