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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 1998 - 2002 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 285, Pipe Joints or Couplings

( 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 1998 1999 2000 2001 2002 Total
~Individually Owned Patent 70 75 49 50 51 295
PROPRIETARY TECHNOLOGY, INC. 7 5 3 2 0 17
TOKAI RUBBER INDUSTRIES, LTD. 1 5 2 4 5 17
GENERAL ELECTRIC COMPANY 2 3 4 2 5 16
ITT MANUFACTURING ENTERPRISES, INC. 0 1 3 3 6 13
ARMATURENFABRIK HERMANN VOSS GMBH & CO. KG 2 0 6 3 1 12
ITT AUTOMOTIVE, INC. 6 6 0 0 0 12
TOTAKU INDUSTRIES, INC. 0 2 0 3 6 11
USUI KOKUSAI SANGYO KABUSHIKI KAISHA 1 3 5 0 2 11
DANA CORPORATION 1 1 1 3 4 10
PARKER-HANNIFIN CORPORATION 1 0 4 0 5 10
TRU-FLEX METAL HOSE CORPORATION 2 2 2 1 3 10
VICTAULIC COMPANY OF AMERICA 3 1 0 4 2 10
HYDRIL COMPANY L.P. 1 0 3 3 2 9
DAIMLER-BENZ AKTIENGESELLSCHAFT 2 3 0 3 0 8
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 3 1 1 0 3 8
WATERWORKS TECHNOLOGY DEVELOPMENT ORGANIZATION CO., LTD. 0 0 4 2 2 8
A. RAYMOND ET CIE. 0 1 3 1 2 7
ADVANCED POLYMER TECHNOLOGY, INC. 1 2 3 1 0 7
FMC CORPORATION 2 2 1 0 2 7
MANNESMANN AG 0 1 3 3 0 7
NIPPON PILLAR PACKING CO. LTD. 1 0 3 0 3 7
RASMUSSEN GMBH 1 1 1 3 1 7
SENIOR ENGINEERING INVESTMENTS AG 0 5 2 0 0 7
SMC KABUSHIKI KAISHA 2 1 1 0 3 7
ANTON HUMMEL VERWALTUNGS GMBH 0 0 1 2 3 6
AUTOMOTIVE FLUID SYSTEMS, INC. 0 2 0 2 2 6
FORD MOTOR COMPANY 1 3 2 0 0 6
GENERAL MOTORS CORPORATION 4 0 0 0 2 6
GRANT PRIDECO, L.P. 0 0 0 2 4 6
LEGRIS SA 0 4 1 1 0 6
PERFECTION CORPORATION 1 2 1 0 2 6
SMC CORPORATION 3 0 0 2 1 6
BUNDY CORPORATION 3 0 1 1 0 5
COOPER CAMERON CORPORATION, INC. 1 0 1 1 2 5
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 0 1 3 1 0 5
ESSER-WERKE GMBH & CO. KG 1 3 1 0 0 5
FUJIKIN INC. 1 1 2 0 1 5
GRANT PRIDECO, INC. 1 2 2 0 0 5
HUTCHINSON 0 2 3 0 0 5
LINDAB AB 0 0 3 1 1 5
SWAGELOK COMPANY 0 0 1 3 1 5
THE LAMSON & SESSIONS CO. 2 0 1 2 0 5
UPONOR INNOVATION AB 0 1 2 1 1 5
VALLOUREC MANNESMANN OIL & GAS FRANCE 0 1 0 1 3 5
WEATHERFORD/LAMB, INC. 1 0 0 2 2 5


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U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
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Alexandria VA 22313

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email: oeip@uspto.gov

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