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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

Patenting In Technology Classes,
Breakout By Organization

Count of 2005 - 2009 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 105, Railway Rolling Stock

( 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 2005 2006 2007 2008 2009 Total
NATIONAL STEEL CAR LIMITED 8 7 4 7 8 34
~INDIVIDUALLY OWNED PATENT 11 7 5 4 7 34
GENERAL ELECTRIC COMPANY 2 1 3 5 2 13
ASF-KEYSTONE, INC. 0 3 3 4 1 11
HITACHI, LTD 3 3 1 3 0 10
TRN BUSINESS TRUST 6 3 1 0 0 10
MINER ENTERPRISES INC. 3 2 1 2 1 9
BOMBARDIER TRANSPORTATION GMBH 2 2 0 3 1 8
SIEMENS AKTIENGESELLSCHAFT 3 0 1 2 1 7
TRINITY INDUSTRIES, INCORPORATED 0 0 5 0 2 7
GUNDERSON, INC. 1 1 0 0 3 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
selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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