IFI

Patent Intelligence & Technology Report

Class Distribution for 1990-1999

363 - ELECTRIC POWER CONVERSION SYSTEMS (IPC H02M)

       1999  1998  1997  1996  1995  1994  1993  1992  1991  1990  Total

DEUTSCHE THOMSON-BRANDT GMBH DE
          5     1     4     1     6     0     0     0     1     2     20
SQUARE D CO
          2     0     0     2     2     2     0     0     0     1      9
RELIANCE ELECTRIC INDUSTRIAL CO
          5     1     1     0     0     0     0     0     0     0      7
SCHNEIDER ELECTRIC S A FR
          4     0     1     2     0     0     0     0     0     0      7
FANUC LTD JP
          0     0     1     0     1     0     0     0     2     1      5
KOREA TELECOM KR
          3     1     1     0     0     0     0     0     0     0      5
THOMSON MULTIMEDIA S A FR
          2     1     1     0     0     1     0     0     0     0      5
PACESETTER INC
          0     1     0     1     0     0     0     0     0     0      2
DAIKIN KOGYO CO LTD JP
          0     0     0     0     0     0     0     0     1     0      1
MITSUMI ELECTRIC CO LTD JP
          0     1     0     0     0     0     0     0     0     0      1
NATIONAL RESEARCH COUNCIL OF CANADA CA
          0     0     0     0     0     0     0     0     0     1      1
SANDEN CORP JP
          0     0     0     1     0     0     0     0     0     0      1

Total    21     6     9     7     9     3     0     0     4     5     64