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

Patenting In Technology Classes,
Breakout By Organization

Count of 2010 - 2014 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 2010 2011 2012 2013 2014 Total
CORNING INCORPORATED 16 20 12 14 19 81
HOYA CORPORATION 7 8 8 14 17 54
SCHOTT AG 12 10 10 10 9 51
ASAHI GLASS COMPANY, LTD. 5 9 13 12 9 48
SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN 3 3 16 8 6 36
TDK CORPORATION 9 4 6 9 7 35
OHARA INC. 5 12 10 3 2 32
MURATA MANUFACTURING CO., LTD. 4 0 4 11 4 23
NGK INSULATORS LTD. 7 3 5 1 4 20
IVOCLAR VIVADENT AG 4 4 3 4 4 19
KYOCERA CORPORATION 5 4 4 3 2 18
NIPPON ELECTRIC GLASS COMPANY LIMITED 1 4 1 4 8 18
~INDIVIDUALLY OWNED PATENT 2 3 7 4 2 18
PPG INDUSTRIES OHIO INC. 6 0 2 1 5 14
HITACHI METALS LTD. 5 4 0 2 1 12
AVANSTRATE INC. 3 1 1 3 2 10
KONICA MINOLTA OPTO, INC 4 5 0 1 0 10
KROSAKIHARIMA CORPORATION 0 0 4 4 1 9
NIPPON SHEET GLASS CO., LTD. 4 1 1 2 0 8
SAINT-GOBAIN GLASS FRANCE 2 2 4 0 0 8
3M INNOVATIVE PROPERTIES COMPANY 3 2 0 1 1 7
EUROKERA 0 0 4 0 3 7
FERRO CORPORATION 4 0 2 0 1 7
GENERAL ELECTRIC COMPANY 2 2 2 1 0 7
GUARDIAN INDUSTRIES CORP. 3 2 1 0 1 7
CANON KABUSHIKI KAISHA 1 0 2 1 2 6
HERAEUS QUARZGLAS GMBH & CO. KG 2 3 1 0 0 6
KABUSHIKI KAISHA OHARA 1 2 2 1 0 6
OCV INTELLECTUAL CAPITAL, LLC 2 0 2 2 0 6
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG 0 3 2 0 1 6
SAINT-GOBAIN CERAMICS & PLASTICS, INC. 1 1 1 0 3 6
SAMSUNG ELECTRO-MECHANICS CO., LTD. 2 1 2 1 0 6
SIEMENS AKTIENGESELLSCHAFT 0 2 3 1 0 6
SUMITOMO ELECTRIC INDUSTRIES, LTD. 2 0 2 1 1 6
TOSOH CORPORATION 0 1 1 2 2 6
FUJIFILM CORPORATION 2 0 1 2 0 5
NIHON YAMAMURA GLASS CO., LTD. 0 1 2 1 1 5
PANASONIC CORPORATION 1 3 1 0 0 5
SAINT-GOBAIN TECHNICAL FABRICS EUROPE 2 0 2 1 0 5



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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/


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