IFI

Patent Intelligence & Technology Report

Class Distribution for 1990-1999

434 - EDUCATION AND DEMONSTRATION (IPC G09B)

       1999  1998  1997  1996  1995  1994  1993  1992  1991  1990  Total

SEGA ENTERPRISES LTD JP
          2     1     0     2     0     0     0     0     0     0      5
ELECTRONIC DATA SYSTEMS CORP
          1     3     0     0     0     0     0     0     0     0      4
ATLANTIC RICHFIELD CO
          0     0     0     1     2     0     0     0     0     0      3
AEROSPATIALE SOC NATIONALE INDUSTRIELLE FR
          0     0     0     0     0     0     1     0     0     1      2
DEUTSCHE FORSCHUNGSANSTALT FUR LUFT- UND RAUMFAHRT E V DE
          0     0     0     0     0     0     0     1     0     0      1
IOWA STATE UNIVERSITY RESEARCH FOUNDATION INC
          0     1     0     0     0     0     0     0     0     0      1
NATIONAL RESEARCH COUNCIL OF CANADA CA
          0     0     0     0     0     1     0     0     0     0      1
PACESETTER INC
          0     0     1     0     0     0     0     0     0     0      1

Total     3     5     1     3     2     1     1     1     0     1     18