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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 1998 - 2002 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 1998 1999 2000 2001 2002 Total
CANON KABUSHIKI KAISHA 176 192 243 230 270 1111
XEROX CORPORATION 178 162 101 123 94 658
RICOH COMPANY, LTD. 105 115 100 65 74 459
MINOLTA CAMERA CO., LTD. 87 104 68 29 25 313
SAMSUNG ELECTRONICS CO., LTD. 35 72 41 52 29 229
FUJI XEROX CO., LTD. 59 45 33 30 37 204
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 33 40 46 51 32 202
MITA INDUSTRIAL COMPANY LTD. 81 39 11 0 0 131
TOSHIBA TEC KABUSHIKI KAISHA 0 0 4 49 67 120
FUJITSU LIMITED 19 26 12 29 24 110
HEWLETT-PACKARD COMPANY 12 15 25 17 38 107
KONICA CORPORATION 25 25 21 12 20 103
EASTMAN KODAK COMPANY 41 37 15 2 0 95
BROTHER KOGYO KABUSHIKI KAISHA 21 26 11 9 16 83
NEC CORPORATION 6 16 25 22 13 82
LEXMARK INTERNATIONAL, INC. 13 7 9 25 16 70
OCE PRINTING SYSTEMS GMBH 4 9 13 25 11 62
TOSHIBA CORPORATION 18 15 14 9 5 61
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 6 9 16 11 15 57
OKIDATA CORPORATION 7 15 17 6 7 52
~Individually Owned Patent 9 9 6 20 8 52
HITACHI KOKI COMPANY, LIMITED 7 6 10 7 11 41
HITACHI, LTD 12 3 11 8 7 41
SEIKO EPSON CORPORATION 4 7 8 9 8 36
NEXPRESS SOLUTIONS LLC 0 0 0 12 22 34
KYOCERA MITA CORPORATION 0 0 2 12 9 23
AGFA-GEVAERT N.V. 10 7 4 0 0 21
HEIDELBERGER DRUCKMASCHINEN AG 1 1 3 1 14 20
BRIDGESTONE CORPORATION 0 8 5 3 2 18
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA 6 5 3 2 0 16
XEIKON NV 3 2 6 2 3 16
INDIGO N.V. 5 3 3 1 2 14
MINNESOTA MINING AND MANUFACTURING COMPANY 11 1 2 0 0 14
AETAS TECHNOLOGY CORP. 0 0 3 5 5 13
HEIDELBERG DIGITAL L.L.C. 0 0 0 5 7 12
MURATA KIKAI KABUSHIKI KAISHA 0 3 3 1 5 12
KYOCERA CORPORATION 4 2 2 2 1 11
MATSUSHITA GRAPHIC COMMUNICATION SYSTEMS, INC. 1 0 0 5 5 11
OCE-TECHNOLOGIES, B.V. 1 2 4 3 1 11
GENERAL PLASTIC INDUSTRIAL CO., LTD. 0 4 3 3 0 10
IMATION CORP. 1 3 6 0 0 10
FUJI PHOTO FILM CO., LTD 3 1 1 4 0 9
HITACHI METALS LTD. 3 2 3 0 1 9
CASIO COMPUTER CO. LTD. 2 3 1 1 1 8
NISCA CORPORATION 2 3 1 0 1 7
NITTO KOGYO CO., LTD. 0 0 2 4 1 7
COPYER CO., LTD. 0 0 2 2 2 6
MITSUBISHI CHEMICAL AMERICA, INC. 1 0 2 2 1 6
TEKTRONIX INC. 1 4 1 0 0 6
INTERNATIONAL BUSINESS MACHINES CORPORATION 2 1 0 0 2 5
OCE-NEDERLAND B.V. 5 0 0 0 0 5
RISO KAGAKU CORPORATION 1 1 0 2 1 5
SIEMENS NIXDORF INFORMATIONSSYSTEME AG 5 0 0 0 0 5
TORAY INDUSTRIES INC. 3 0 1 0 1 5


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