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 2006 - 2010 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 501, Compositions: Ceramic

( 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 2006 2007 2008 2009 2010 Total
CORNING INCORPORATED 8 9 11 12 16 56
SCHOTT AG 6 12 6 17 12 53
TDK CORPORATION 1 9 9 8 9 36
ASAHI GLASS COMPANY, LTD. 5 1 9 10 5 30
HOYA CORPORATION 4 4 2 13 7 30
NGK INSULATORS LTD. 4 8 6 5 7 30
MURATA MANUFACTURING CO., LTD. 1 5 11 7 4 28
~INDIVIDUALLY OWNED PATENT 4 5 6 5 2 22
KABUSHIKI KAISHA OHARA 7 4 6 3 1 21
GUARDIAN INDUSTRIES CORPORATION 5 1 0 8 3 17
3M INNOVATIVE PROPERTIES COMPANY 4 3 1 4 3 15
KYOCERA CORPORATION 2 2 3 3 5 15
NIPPON SHEET GLASS CO., LTD. 1 4 2 4 4 15
PPG INDUSTRIES OHIO INC. 3 0 2 3 6 14
FERRO-CORPORATION 2 2 0 3 4 11
KENNAMETAL INC. 2 4 4 0 1 11
IVOCLAR VIVADENT AG 1 2 2 0 4 9
SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN 2 0 3 1 3 9
SANYO ELECTRIC CO., LTD. 2 6 1 0 0 9
EUROKERA 1 1 3 3 0 8
SAINT-GOBAIN CERAMICS & PLASTICS, INC. 4 1 1 1 1 8
TOSHIBA CORPORATION 2 2 0 3 1 8
E. I. DU PONT DE NEMOURS AND COMPANY 4 0 1 0 2 7
HERAEUS QUARZGLAS GMBH & CO. KG 3 1 0 1 2 7
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 5 1 1 0 0 7
NIPPON ELECTRIC GLASS COMPANY LIMITED 1 1 1 3 1 7
HITACHI METALS LTD. 0 1 0 0 5 6
KONICA MINOLTA OPTO, INC 0 0 0 2 4 6
NGK SPARK PLUG CO., LTD. 3 3 0 0 0 6
OHARA INC. 0 0 0 1 5 6
SAINT-GOBAIN GLASS FRANCE 1 1 0 2 2 6
SCHOTT GLASWERKE 5 1 0 0 0 6
TOTO, LTD. 0 0 2 1 3 6
COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH 3 1 1 0 0 5
GENERAL ELECTRIC COMPANY 2 0 0 1 2 5
JOHNS MANVILLE 1 0 0 0 4 5
KONINKLIJKE PHILIPS ELECTRONICS N.V. 1 0 1 2 1 5
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY 2 3 0 0 0 5
MORGAN CRUCIBLE COMPANY PLC 2 1 1 0 1 5
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG 2 1 0 2 0 5
SUMITOMO ELECTRIC INDUSTRIES CO., LTD. 1 0 2 0 2 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/


Top

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