Patenting By Organizations


Top Ten Companies
Calendar Year 1991


This report, prepared from the Technology Assessment and Forecast
(TAF) data base, shows, for U.S. utility patents granted in
calendar year 1991, the ten organizations which received the most
patents.

Patent information included in the report reflects patent
ownership at patent grant and does not include changes in
ownership which occur after the patent grant. Where more than one
assignee exists, patents are attributed to the first-named
assignee.

No attempt has been made to combine data based on subsidiary
relationships. However, where possible, spelling variations and
variations based on name changes (e.g., ESSO to EXXON) have been
merged into a single name. While every effort is made to
accurately identify all organizational entities and report data
by a single organization name, achievement of a totally clean
record is not expected, particularly in view of the variations
which occur in many corporate identifications.




      (Rank in)                                               # of Utility
Rank  ( 1990  )  ORGANIZATION                                      Patents

 1      (2)      Toshiba Corporation                               1014
 2      (4)      Mitsubishi Denki Kabushiki Kaisha                  936
 3      (1)      Hitachi, Ltd.                                      927
 4      (7)      Eastman Kodak Company                              863
 5      (3)      Canon Kabushiki Kaisha                             823
 6      (5)      General Electric Company                           809
 7      (6)      Fuji Photo Film Co., Ltd.                          731
 8      (9)      International Business Machines Corporation        679
 9      (8)      U.S. Philips Corporation (Dutch)                   650
10     (19)      Motorola Inc.                                      613


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(address updated 4/96)
             U.S. Patent and Trademark Office
             Office of Electronic Information Products
             Technology Assessment and Forecast Program
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_____________
SOURCE:  U.S. Patent and Trademark Office
         Technology Assessment and Forecast Program    3-3-92