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

Patenting In Technology Classes,
Breakout By Organization

Count of 1969 - 2005 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 051, Abrasive Tool Making Process, Material, or Composition

( 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 Total
~Individually Owned Patent 2 3 3 4 3 6 4 11 10 6 5 9 11 2 3 3 7 5 5 7 11 11 11 14 18 7 8 5 14 3 4 6 4 5 4 3 2 239
MINNESOTA MINING AND MANUFACTURING COMPANY 0 4 2 0 0 0 1 0 2 3 0 2 1 2 0 1 3 2 2 6 9 4 7 12 14 12 16 32 24 15 12 1 1 0 0 0 0 190
NORTON COMPANY 2 7 5 3 2 1 13 4 7 4 3 3 1 3 2 3 3 4 4 1 2 6 13 15 9 3 6 9 6 8 9 7 6 0 0 0 0 174
GENERAL ELECTRIC COMPANY 1 2 2 1 4 3 4 1 2 1 4 7 8 3 5 5 5 1 3 4 5 5 4 4 6 2 2 1 3 0 0 1 0 2 1 1 0 103
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 4 8 16 8 19 11 7 73
SHOWA DENKO KABUSHIKI KAISHA 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 0 1 0 0 0 1 4 1 0 2 1 1 0 2 1 1 1 2 5 3 1 0 30
GTE LABORATORIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 9 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21
CARBORUNDUM COMPANY 2 3 1 1 0 1 0 0 0 3 2 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 15
FUJIMI INCORPORATED 0 0 0 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 3 3 2 5 1 15
SUMITOMO ELECTRIC INDUSTRIES CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 0 0 0 3 2 2 1 0 0 1 1 0 2 0 0 0 0 15
RODEL HOLDINGS 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 6 4 4 0 14
MITSUI MINING + SMELTING CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 0 2 3 4 13
SAINT-GOBAIN ABRASIVES TECHNOLOGY 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 5 2 6 0 13
SMITH INTERNATIONAL INC. 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 2 0 1 1 0 0 2 0 0 2 1 0 0 0 1 13
INTERNATIONAL BUSINESS MACHINES CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 1 0 1 0 0 0 0 1 0 0 0 0 2 2 2 0 11
TYROLIT SCHLEIFMITTELWERKE SWAROVSKI K.G. 0 0 0 0 0 0 0 0 2 0 0 0 2 0 2 0 1 1 0 0 0 0 0 2 0 0 0 0 0 0 0 1 0 0 0 0 0 11
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 3 0 3 1 2 1 0 0 0 0 0 0 10
CHURCH + DWIGHT 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 4 2 2 1 0 0 0 0 0 0 0 0 9
E. I. DU PONT DE NEMOURS AND COMPANY 1 1 2 2 0 0 0 0 0 1 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 9
FUJI PHOTO FILM 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 2 1 0 4 1 0 0 0 0 0 0 0 9
DOW CHEMICAL COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 4 0 0 0 0 0 0 0 1 0 0 0 0 0 8
J. M. HUBER CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 2 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 3 8
KAO KABUSHIKI KAISHA (KAO 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 0 2 2 1 2 8
KENNAMETAL INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 0 1 2 2 0 0 0 0 0 0 0 0 0 8
NISSAN CHEMICAL 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 1 0 0 0 0 0 0 1 0 0 3 0 2 1 8
CINCINNATI MILACRON INC. 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 1 0 0 0 0 0 0 0 0 0 7
HITACHI, LTD 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 0 1 0 0 0 0 0 0 0 0 2 0 7
NORITAKE 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 0 0 0 1 0 2 2 0 1 7
TOSHIBA CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 2 0 0 0 7
CABOT MICROELECTRONICS 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 0 0 3 2 1 6
CARBORUNDUM ABRASIVES COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
COLGATE-PALMOLIVE COMPANY 0 0 1 0 1 1 0 2 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 6
DEGUSSA AKTIENGESELLSCHAFT 0 0 0 0 0 0 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 4 0 6
FERRO-CORPORATION 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 6
NGK SPARK PLUG CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 6
SAINT-GOBAIN INDUSTRIAL CERAMICS, 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 1 0 0 0 6
SANDVIK AKTIEBOLAG 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 0 0 1 0 0 0 1 0 6
HOECHST AKTIENGESELLSCHAFT 0 0 0 0 0 0 0 0 1 0 1 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 5
LONZA LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 1 0 0 0 0 0 0 0 0 0 0 0 0 5
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 0 0 1 1 0 1 0 0 0 1 1 0 0 0 5
REMINGTON ARMS COMPANY INC. 0 0 3 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 5
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 0 0 1 2 0 0 0 1 0 0 0 0 0 0 1 0 5
TREIBACHER CHEMISCHE WERKE AKTIENGESELLSCHAFT 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5
U.S. INDUSTRIES, INC. 0 2 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 0 0 0 0 5
UNITED STATES OF AMERICA, DEPARTMENT OF ENERGY 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 2 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 5
UNITED TECHNOLOGIES CORPORATION 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5


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Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Electronic Information Products Division - PTMB
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

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