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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 2004 - 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 416, Fluid Reaction Surfaces (i.e., Impellers)

( 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 2004 2005 2006 2007 2008 Total
GENERAL ELECTRIC COMPANY 44 39 39 46 50 218
~INDIVIDUALLY OWNED PATENT 35 30 34 29 29 157
UNITED TECHNOLOGIES CORPORATION 5 13 21 14 18 71
ROLLS-ROYCE PLC 1 9 13 12 10 45
SNECMA MOTEURS 6 4 16 7 2 35
PRATT & WHITNEY CANADA CORP. 1 5 6 15 7 34
SIEMENS POWER GENERATION, INC. 0 0 8 15 11 34
ALSTOM TECHNOLOGY LTD 3 1 10 10 4 28
SIEMENS AKTIENGESELLSCHAFT 9 1 3 7 4 24
SIKORSKY AIRCRAFT CORPORATION 2 6 3 5 1 17
HAMILTON SUNDSTRAND CORPORATION 2 1 2 5 5 15
HUNTER FAN COMPANY 4 9 1 0 1 15
SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION "S.N.E.C.M.A." 0 0 0 2 12 14
FLORIDA TURBINE TECHNOLOGIES, INC. 0 2 3 1 7 13
BOEING COMPANY 4 0 5 2 1 12
DELTA ELECTRONICS INC. 1 3 4 1 3 12
MITSUBISHI HEAVY INDUSTRIES, LTD. 4 2 3 2 1 12
EUROCOPTER FRANCE S.A. 1 2 3 2 3 11
HONEYWELL INTERNATIONAL INC. 1 2 2 2 4 11
LG ELECTRONICS INC. 4 2 1 3 0 10
ROLLS-ROYCE DEUTSCHLAND LTD & CO KG 1 0 2 4 2 9
HITACHI, LTD 3 1 1 1 2 8
SIEMENS WESTINGHOUSE POWER CORPORATION 3 4 1 0 0 8
LM GLASSFIBER A/S 0 2 0 3 2 7
MTU AERO ENGINES GMBH 0 0 2 3 2 7
EUROCOPTER DEUTSCHLAND GMBH 0 0 0 5 1 6
KING OF FANS, INC. 2 1 1 1 1 6
TOSHIBA CORPORATION 1 0 2 3 0 6
POWER SYSTEMS MFG., LLC 3 2 0 0 0 5


PTMT Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Electronic Information Products Division - PTMT
P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

address of PTMT pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of selected PTMT reports and materials from : ftp.uspto.gov/pub/taf/


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