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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Branch (PTMB)

Patenting In Technology Classes,
Breakout By Organization

Count of 2001 - 2005 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 399, Electrophotography

( 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 2001 2002 2003 2004 2005 Total
CANON KABUSHIKI KAISHA 230 270 221 238 250 1209
RICOH COMPANY, LTD. 65 74 116 162 122 539
XEROX CORPORATION 123 94 84 73 56 430
SAMSUNG ELECTRONICS CO., LTD. 52 29 25 60 59 225
TOSHIBA CORPORATION 9 5 68 56 63 201
FUJI XEROX CO., LTD. 30 37 34 47 39 187
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 51 32 25 29 33 170
TOSHIBA TEC KABUSHIKI KAISHA 49 67 46 0 0 162
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 0 0 37 51 33 121
KONICA CORPORATION 12 20 24 30 8 94
NEXPRESS SOLUTIONS LLC 12 22 34 22 2 92
BROTHER KOGYO KABUSHIKI KAISHA 9 16 12 25 29 91
MINOLTA CAMERA CO., LTD. 29 25 17 11 7 89
LEXMARK INTERNATIONAL, INC. 25 16 12 16 12 81
SEIKO EPSON CORPORATION 9 8 12 18 30 77
HEWLETT-PACKARD COMPANY 17 38 12 0 0 67
FUJITSU LIMITED 29 24 5 3 0 61
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 11 15 9 11 14 60
OCE PRINTING SYSTEMS GMBH 25 11 7 6 7 56
OKIDATA CORPORATION 6 7 11 12 17 53
~Individually Owned Patent 20 8 10 4 8 50
HEIDELBERGER DRUCKMASCHINEN AG 1 14 24 7 0 46
KYOCERA MITA CORPORATION 12 9 5 9 3 38
NEC CORPORATION 22 13 1 0 0 36
HITACHI, LTD 8 7 11 7 2 35
EASTMAN KODAK COMPANY 2 0 0 5 25 32
HITACHI KOKI COMPANY, LIMITED 7 11 4 3 0 25
FUJI PHOTO FILM CO., LTD 4 0 1 0 14 19
MURATA KIKAI KABUSHIKI KAISHA 1 5 4 1 7 18
AETAS TECHNOLOGY INC. 5 5 2 3 1 16
GENERAL PLASTIC INDUSTRIAL CO., LTD. 3 0 8 2 1 14
HEIDELBERG DIGITAL L.L.C. 5 7 0 2 0 14
NISCA CORPORATION 0 1 4 3 5 13
HITACHI PRINTING SOLUTIONS, LTD. 0 0 0 11 1 12
KYOCERA CORPORATION 2 1 4 2 3 12
PFU LIMITED 3 1 2 3 3 12
MATSUSHITA GRAPHIC COMMUNICATION SYSTEMS, INC. 5 5 1 0 0 11
BRIDGESTONE CORPORATION 3 2 2 3 0 10
CF TECHNOLOGIES, INC. 1 1 2 4 1 9
NITTO KOGYO CO., LTD. 4 1 1 2 0 8
STATIC CONTROL COMPONENTS, INC. 0 0 0 3 5 8
MITSUBISHI CHEMICAL AMERICA, INC. 2 1 0 2 2 7
OCE-TECHNOLOGIES, B.V. 3 1 2 1 0 7
RICOH PRINTING SYSTEMS, LTD. 0 0 0 0 6 6
COPYER CO., LTD. 2 2 1 0 0 5
INTERNATIONAL BUSINESS MACHINES CORPORATION 0 2 0 1 2 5
PANASONIC COMMUNICATIONS CO., LTD. 0 0 1 4 0 5
RISO KAGAKU CORPORATION 2 1 1 1 0 5
XEIKON NV 2 3 0 0 0 5


PTMB Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Electronic Information Products Division - PTMB
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

address of PTMB pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
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