IFI

Patent Intelligence & Technology Report

10 Year Profile for 1990-1999

READ-RITE CORP

Class  1999  1998  1997  1996  1995  1994  1993  1992  1991  1990  Total

 029      5     4     0     0     2     0     0     0     0     0     11
 033      0     0     0     1     0     0     0     0     0     0      1
 073      0     0     0     0     0     1     0     0     0     0      1
 148      1     0     0     0     0     0     0     0     0     0      1
 204      0     2     0     0     0     1     1     0     0     0      4
 205      0     0     0     0     0     0     0     1     0     0      1
 206      1     0     0     0     0     0     0     0     0     0      1
 216      0     1     0     1     1     0     0     0     0     0      3
 257      1     0     0     0     0     0     0     0     0     0      1
 324      0     4     1     0     1     0     0     0     0     0      6
 338      0     2     0     0     0     0     0     0     0     0      2
 356      0     0     1     0     0     0     0     0     0     0      1
 360     20    21     8     4     8     8     3     1     0     0     73
 367      0     0     0     0     1     0     0     0     0     0      1
 369      7     2     0     0     0     0     0     0     0     0      9
 384      0     1     1     1     0     0     0     0     0     0      3
 427      2     0     1     2     1     0     1     0     0     0      7
 428      2     2     0     0     0     0     0     0     0     0      4
 438      1     0     0     0     0     0     0     0     0     0      1
 451      0     1     0     0     1     1     1     1     0     0      5
 700      0     0     0     0     0     0     1     0     0     0      1

Total    40    40    12     9    15    11     7     3     0     0    137