IFI

Patent Intelligence & Technology Report

Class Distribution for 1990-1999

438 - SEMICONDUCTOR DEVICE MANUFACTURING: PROCESS (IPC H01L)

       1999  1998  1997  1996  1995  1994  1993  1992  1991  1990  Total

CHARTERED SEMICONDUCTOR MANUFACTURING PTE LTD SG
         24    23    28     4     2     3     4     2     0     0     90
TEXAS INSTRUMENTS-ACER INC TW
         37     5     0     0     0     0     0     0     0     0     42
LAM RESEARCH CORP
         12     4     4     2     0     0     1     1     0     1     25
FRANCE TELECOM S A FR
          2     1     2     3     0     5     7     0     0     0     20
KOREA TELECOM KR
          2     1     4     3     2     0     0     0     1     1     14
PLANCK-GESELL, MAX- ZUR FORDERUNG DER WISSENSCHAFTEN DE
          2     1     0     0     1     2     0     0     0     0      6
NITTO DENKO CORP JP
          2     1     1     0     0     0     0     0     0     0      4
IOWA STATE UNIVERSITY RESEARCH FOUNDATION INC
          0     0     1     0     0     1     0     0     1     0      3
PENN STATE RESEARCH FOUNDATION THE
          1     0     1     0     0     1     0     0     0     0      3
DEUTSCHE FORSCHUNGSANSTALT FUR LUFT- UND RAUMFAHRT E V DE
          0     1     0     1     0     0     0     0     0     0      2
DUKE UNIVERSITY
          0     0     0     0     1     0     0     0     0     1      2
HITACHI CHEMICAL CO LTD JP
          1     0     0     0     0     0     0     1     0     0      2
YEDA RESEARCH & DEVELOPMENT CO LTD IL
          0     0     1     0     1     0     0     0     0     0      2
BOC GROUP INC THE
          0     0     0     0     0     0     0     0     0     1      1
HARVARD COLLEGE, PRESIDENT & FELLOWS OF
          0     0     0     1     0     0     0     0     0     0      1
KOKUSAI DENSHIN DENWA K K JP
          0     0     0     0     0     0     0     0     1     0      1
MARYLAND, UNIVERSITY OF
          0     1     0     0     0     0     0     0     0     0      1
MITSUMI ELECTRIC CO LTD JP
          1     0     0     0     0     0     0     0     0     0      1
NATIONAL RESEARCH COUNCIL OF CANADA CA
          0     0     0     0     1     0     0     0     0     0      1
READ-RITE CORP
          1     0     0     0     0     0     0     0     0     0      1

Total    85    38    42    14     8    12    12     4     3     4    222