Skip menu navigation Home > Listing of Viewable PTMT Reports > Table of Contents for This Set of Reports


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

Patenting In Technology Classes,
Breakout By Organization

Count of 2011 - 2015 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 277, Seal for a Joint or Juncture

( 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 2011 2012 2013 2014 2015 Total
~INDIVIDUALLY OWNED PATENT 8 13 6 15 10 52
NOK CORPORATION 13 10 13 8 5 49
GENERAL ELECTRIC COMPANY 5 9 13 8 11 46
EAGLE INDUSTRY CO., LTD. 7 6 10 10 5 38
FEDERAL-MOGUL CORP. 1 1 11 7 11 31
UNITED TECHNOLOGIES CORPORATION 5 6 2 8 10 31
AKTIEBOLAGET SKF 2 3 3 6 12 26
FREUDENBERG-NOK GENERAL PARTNERSHIP 10 4 7 4 1 26
ROLLS-ROYCE PLC 3 3 5 5 10 26
STEIN SEAL COMPANY 5 3 7 4 1 20
FEDERAL-MOGUL BURSCHEID GMBH 1 2 3 4 9 19
GM GLOBAL TECHNOLOGY OPERATIONS LLC 2 3 5 6 1 17
CARL FREUDENBERG KG 1 2 2 3 5 13
EATON CORPORATION 3 1 3 3 2 12
DANA AUTOMOTIVE SYSTEMS GROUP, LLC. 2 5 2 1 1 11
ELRING KLINGER AG 4 4 0 1 2 11
FEDERAL-MOGUL WORLD WIDE, INC. 6 3 1 1 0 11
ISHIKAWA GASKET CO. LTD. 5 3 1 1 1 11
PARKER-HANNIFIN CORPORATION 1 2 2 3 2 10
BAKER HUGHES INCORPORATED 3 0 1 0 5 9
KALSI ENGINEERING, INC. 2 0 2 0 5 9
OILES CORPORATION 0 0 2 0 7 9
VETCO GRAY INC 0 3 2 2 2 9
EAGLEBURGMANN GERMANY GMBH & CO. KG 2 3 1 0 2 8
MITSUBISHI HEAVY INDUSTRIES, LTD. 1 2 2 1 2 8
MUELLER INTERNATIONAL INC. 0 0 3 2 3 8
NIPPON PILLAR PACKING CO. LTD. 2 2 2 1 1 8
CROSS MANUFACTURING COMPANY (1938) LIMITED 1 2 1 3 0 7
SIEMENS AKTIENGESELLSCHAFT 1 0 2 2 2 7
ALSTOM TECHNOLOGY LTD 1 1 2 1 1 6
FLORIDA TURBINE TECHNOLOGIES, INC. 2 4 0 0 0 6
MAHLE INTERNATIONAL GMBH 2 2 1 0 1 6
TOYOTA JIDOSHA K.K. 0 2 2 2 0 6
UCHIYAMA MANUFACTURING CORP. 3 0 1 2 0 6
AES ENGINEERING LIMITED 4 0 0 0 1 5
BAL SEAL ENGINEERING COMPANY, INC. 0 2 1 1 1 5
CAMERON INTERNATIONAL CORPORATION 0 2 0 1 2 5
FLOWSERVE MANAGEMENT COMPANY 1 1 0 1 2 5
KACO GMBH + CO. KG 0 1 1 1 2 5
KOMATSU LTD. 2 1 0 0 2 5
MITSUBISHI CABLE INDUSTRIES, LTD. 0 0 0 3 2 5
MTU AERO ENGINES GMBH 2 1 2 0 0 5
NIPPON VALQUA INDUSTRIES, LTD. 2 1 0 1 1 5
NTN CORPORATION 1 0 4 0 0 5
SCHAEFFLER TECHNOLOGIES AG & CO. KG 1 1 1 0 2 5
SIEMENS ENERGY, INC. 0 0 2 2 1 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/reports.htm
selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


Top

Skip menu navigation Home > Listing of Viewable PTMT Reports > Table of Contents for This Set of Reports