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

EXTENDED YEAR SET - Patenting In Technology Classes,
Breakout By Organization

Count of 1969 - 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 218, High-Voltage Switches with Arc Preventing or Extinguishing Devices

( 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 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Total
SIEMENS AKTIENGESELLSCHAFT 2 1 4 1 7 19 11 8 7 4 3 4 6 5 4 14 14 11 9 7 3 4 4 3 2 3 1 8 3 9 4 5 8 10 4 9 6 5 2 2 4 3 1 4 2 8 6 264
WESTINGHOUSE ELECTRIC CORP. 8 20 24 16 6 20 9 13 15 22 7 12 11 7 11 15 9 2 9 5 4 5 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 252
GENERAL ELECTRIC COMPANY 16 17 22 7 7 13 6 7 13 9 1 4 1 4 4 6 4 2 10 6 1 4 1 0 0 2 1 0 1 3 3 2 11 4 2 0 0 0 0 0 0 1 1 1 4 1 2 204
HITACHI, LTD 0 1 2 0 6 2 4 3 4 3 3 9 3 4 3 5 6 1 3 1 1 2 5 7 5 1 2 4 7 14 2 4 5 7 8 11 5 1 3 1 0 4 6 8 3 2 5 186
MITSUBISHI DENKI KABUSHIKI KAISHA 0 0 0 1 1 0 0 0 0 2 1 8 10 4 8 18 11 7 8 8 7 4 3 5 2 3 2 4 3 2 2 2 1 2 4 1 2 1 1 1 1 1 4 5 3 5 12 170
EATON CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 0 1 0 0 1 3 0 2 2 3 1 9 6 4 4 6 2 4 2 8 6 1 4 3 3 7 6 6 5 104
TOSHIBA CORPORATION 0 0 4 1 0 1 0 2 0 3 0 3 5 0 3 7 3 2 2 2 0 1 1 1 1 2 5 2 0 1 1 2 0 5 3 2 1 1 0 0 0 1 0 4 0 1 1 74
~INDIVIDUALLY OWNED PATENT 1 2 5 7 2 4 0 1 5 0 1 0 2 3 1 0 3 3 1 2 2 2 1 1 2 2 0 2 0 0 0 2 3 0 0 2 0 1 0 0 0 0 0 1 4 2 2 72
I-T-E IMPERIAL CORPORATION 1 12 12 1 5 16 8 6 5 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 69
ABB TECHNOLOGY AG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 2 1 3 5 4 5 4 11 20 7 64
BBC BROWN, BOVERI & COMPANY, LIMITED 0 0 0 0 0 3 1 1 1 2 1 3 1 3 5 9 4 5 11 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 53
ALLIS-CHALMERS CORPORATION 3 4 8 9 5 4 4 4 3 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 47
SPRECHER + SCHUH AG 0 0 1 1 2 0 3 3 8 3 0 2 2 5 7 4 2 1 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 46
MERLIN GERIN S.A. 0 1 2 5 2 0 1 2 0 0 0 0 0 1 0 1 3 0 1 5 4 3 3 3 2 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 44
MEIDENSHA ELECTRIC MFG. CO. LTD. 0 0 0 0 0 0 2 1 0 0 0 0 2 3 6 8 5 1 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 1 1 0 0 0 0 0 0 0 0 0 39
BROWN, BOVERI + CIE A. G. 6 1 4 9 8 1 0 2 0 0 0 1 0 0 2 0 0 0 0 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 38
GEC ALSTHOM SA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 8 10 9 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 37
S & C ELECTRIC CO. 0 2 4 1 1 0 2 0 0 2 0 1 2 1 3 0 2 1 2 0 0 1 3 1 0 1 1 1 2 1 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 37
SQUARE D COMPANY 1 0 2 2 0 0 0 0 0 0 0 1 2 1 0 1 0 3 1 2 2 2 2 2 1 1 1 3 1 0 0 0 1 2 2 0 0 1 0 0 0 0 0 0 0 0 0 37
GEC ALSTHOM T&D SA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 3 3 6 10 6 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 32
MCGRAW-EDISON COMPANY 0 1 1 1 1 2 2 1 0 2 1 0 1 0 1 3 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 1 0 0 0 0 0 0 0 0 0 24
LSIS CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 13 23
ASEA AKTIEBOLAG 2 3 3 3 1 3 0 0 2 1 0 0 1 2 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22
ELECTRIC POWER RESEARCH INSTITUTE, INC. 0 0 0 0 0 0 0 0 0 0 1 4 13 1 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21
SCHNEIDER ELECTRIC INDUSTRIES SAS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 1 2 0 0 1 1 0 1 0 2 2 3 4 21
ALSTOM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 8 7 1 1 0 0 0 0 0 0 0 0 0 0 18
ASEA BROWN BOVERI AKTIENGESELLSCHAFT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 4 6 3 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 18
SIEMENS ENERGY & AUTOMATION, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 3 1 0 0 0 1 1 0 2 3 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 18
ABB POWER T&D COMPANY INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 2 5 4 1 2 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 17
ABB RESEARCH LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 1 2 2 0 0 0 0 0 0 0 0 0 2 3 2 1 0 17
AREVA T&D SA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 6 6 0 1 0 0 16
COOPER INDUSTRIES INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 3 0 2 0 1 0 1 0 1 3 1 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 16
LA TELEMECANIQUE ELECTRIQUE 1 0 1 0 0 0 0 0 0 0 0 1 1 0 1 0 2 1 5 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14
ALSTHOM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13
FUJI ELECTRIC CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 1 0 1 1 0 0 2 1 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13
GOULD INC. 0 0 0 0 0 0 0 0 0 0 1 5 5 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13
LS INDUSTRIAL SYSTEMS CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 8 1 2 0 13
ALSTHOM-ATLANTIQUE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 4 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
HAZEMEIJER B.V. 0 0 0 0 0 0 3 0 0 5 0 0 2 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
SCHNEIDER ELECTRIC SA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 3 4 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
LG INDUSTRIAL SYSTEMS CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 1 0 1 1 3 0 0 0 0 0 0 0 0 0 0 0 11
LICENTIA PATENT-VERWALTUNGS-GMBH 0 0 2 0 0 0 0 0 1 1 0 2 1 0 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
SCHNEIDER ELECTRIC USA, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 3 4 11
COOPER TECHNOLOGIES COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 2 3 0 0 2 1 0 10
ENGLISH ELECTRIC COMPANY LIMITED 3 3 2 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10
DELLE-ALSTHOM S.A 0 0 0 0 1 0 1 0 1 2 0 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
ITT CORPORATION 0 1 1 1 2 1 0 1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
N.V. COQ 0 1 5 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
ABB (SCHWEIZ) AG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 1 1 2 0 0 0 0 0 0 0 1 8
MAGRINI FABBRICHE RIUNITE MAGRINI SCARPA E MAGNANO-M.S.M.-S. 0 1 1 4 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
A. B. CHANCE CO. 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
ABB SERVICE S.R.L. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 4 0 0 0 1 0 0 0 0 0 0 0 7
BROWN BOVERI ELECTRIC INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
HUBBELL INCORPORATED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 3 0 0 2 1 0 0 0 0 0 0 0 0 0 0 7
SIEMENS-ALLIS, INC. 0 0 0 0 0 0 0 0 0 1 0 1 0 2 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
SPRECHER ENERGIE AG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
ABB PATENT GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 3 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 6
ABB TECHNOLOGY LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2 0 1 2 6
ASEA BROWN BOVERI AB 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 1 0 0 0 0 0 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 6
FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2 1 2 0 6
G & W ELECTRIC COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 2 6
NORTHERN ENGINEERING INDUSTRIES PLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 3 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
SACHSENWERK AG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
THOMAS & BETTS INTERNATIONAL, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 1 0 0 0 1 0 6
ABB MANAGEMENT AG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
ALSTOM TECHNOLOGY LTD 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 5
AREVA T& D SAS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 5
CLEAVELAND/PRICE ENTERPRISES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 2 0 1 0 0 0 0 0 0 0 0 0 5
EATON ELECTRICAL IP GMBH & CO. KG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 5
GEC ALSTHOM ENERGIE INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
HYUNDAI HEAVY INDUSTRIES CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 5
JOSLYN MFG. AND SUPPLY CO. 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
MATSUSHITA ELECTRIC WORKS, LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
SACE S.P.A. COSTRUZIONI ELETTROMECCANICHE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
SOUTH WALES SWITCHGEAR LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 2 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
SOUTHERN STATES LLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 1 1 0 0 1 5



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