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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

Patenting In Technology Classes,
Breakout By Organization

Count of 2000 - 2004 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 2000 2001 2002 2003 2004 Total
CANON KABUSHIKI KAISHA 243 230 270 221 238 1202
RICOH COMPANY, LTD. 100 65 74 116 162 517
XEROX CORPORATION 101 123 94 84 73 475
SAMSUNG ELECTRONICS CO., LTD. 41 52 29 25 60 207
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 46 51 32 25 29 183
FUJI XEROX CO., LTD. 33 30 37 34 47 181
TOSHIBA TEC KABUSHIKI KAISHA 4 49 67 46 0 166
TOSHIBA CORPORATION 14 9 5 68 56 152
MINOLTA CAMERA CO., LTD. 68 29 25 17 11 150
KONICA CORPORATION 21 12 20 24 30 107
HEWLETT-PACKARD COMPANY 25 17 38 12 0 92
NEXPRESS SOLUTIONS LLC 0 12 22 34 22 90
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 0 0 0 37 51 88
LEXMARK INTERNATIONAL, INC. 9 25 16 12 16 78
BROTHER KOGYO KABUSHIKI KAISHA 11 9 16 12 25 73
FUJITSU LIMITED 12 29 24 5 3 73
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 16 11 15 9 11 62
OCE PRINTING SYSTEMS GMBH 13 25 11 7 6 62
NEC CORPORATION 25 22 13 1 0 61
SEIKO EPSON CORPORATION 8 9 8 12 18 55
OKIDATA CORPORATION 17 6 7 11 12 53
HEIDELBERGER DRUCKMASCHINEN AG 3 1 14 24 7 49
~Individually Owned Patent 6 20 8 10 4 48
HITACHI, LTD 11 8 7 11 7 44
KYOCERA MITA CORPORATION 2 12 9 5 9 37
HITACHI KOKI COMPANY, LIMITED 10 7 11 4 3 35
EASTMAN KODAK COMPANY 15 2 0 0 5 22
AETAS TECHNOLOGY CORP. 3 5 5 2 2 17
GENERAL PLASTIC INDUSTRIAL CO., LTD. 3 3 0 8 2 16
BRIDGESTONE CORPORATION 5 3 2 2 3 15
HEIDELBERG DIGITAL L.L.C. 0 5 7 0 2 14
MURATA KIKAI KABUSHIKI KAISHA 3 1 5 4 1 14
HITACHI PRINTING SOLUTIONS, LTD. 0 0 0 0 11 11
KYOCERA CORPORATION 2 2 1 4 2 11
MATSUSHITA GRAPHIC COMMUNICATION SYSTEMS, INC. 0 5 5 1 0 11
MITA INDUSTRIAL COMPANY LTD. 11 0 0 0 0 11
OCE-TECHNOLOGIES, B.V. 4 3 1 2 1 11
XEIKON NV 6 2 3 0 0 11
NITTO KOGYO CO., LTD. 2 4 1 1 2 10
NISCA CORPORATION 1 0 1 4 3 9
PFU LIMITED 0 3 1 2 3 9
CF TECHNOLOGIES, INC. 0 1 1 2 4 8
COPYER CO., LTD. 2 2 2 1 0 7
INDIGO N.V. 3 1 2 1 0 7
MITSUBISHI CHEMICAL AMERICA, INC. 2 2 1 0 2 7
FUJI PHOTO FILM CO., LTD 1 4 0 1 0 6
IMATION CORP. 6 0 0 0 0 6
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA 3 2 0 0 0 5
PANASONIC COMMUNICATIONS CO., LTD. 0 0 0 1 4 5
RISO KAGAKU CORPORATION 0 2 1 1 1 5


PTMD Contacts

Questions regarding these reports should be directed to:

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

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

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