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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 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 2005 2006 2007 2008 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 34 26 10 10 2060
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 11 9 3 2 353
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 0 2 1 1 190
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 0 1 0 0 131
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 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 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 0 0 0 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 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 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 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 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 0 0 0 0 25
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 4 2 1 3 23
CNH AMERICA 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 1 5 7 4 3 20
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 4 2 0 1 20
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 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 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 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 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 0 1 0 0 18
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 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 0 0 0 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 0 0 0 0 14
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 1 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 0 0 0 0 13
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 2 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 0 0 0 0 13
PLANETAIR TURF PRODUCTS, 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 1 1 0 5 2 3 12
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 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 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 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 0 0 0 0 11
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 2 0 0 1 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 0 0 0 0 11
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 1 0 0 0 11
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 0 1 1 1 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 0 0 0 0 10
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 1 0 1 0 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 0 0 0 0 10
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 1 0 0 0 9
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 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 0 0 0 0 9
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 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 0 0 0 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 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 0 0 0 0 8
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 1 0 0 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 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 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 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 0 0 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 0 0 0 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 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 0 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 0 0 0 0 7
STEINER TURF EQUIPMENT, 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 1 0 1 0 0 3 0 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 0 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 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 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 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 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 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 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 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 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 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 0 0 0 0 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 0 0 0 0 6
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 1 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 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 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 0 0 0 0 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 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 0 0 0 0 5
BOURGAULT 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 0 1 2 0 0 0 1 0 0 1 5
BUCYRUS EQUIPMENT CO., 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 0 0 1 0 0 0 0 0 0 0 0 1 2 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 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 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 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 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 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 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 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 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 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 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 0 0 0 0 5
MORRIS 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 1 0 0 0 0 1 2 0 1 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 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 0 0 0 0 5
TEXTRON 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 3 0 0 0 0 0 1 0 0 5



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