IFI

Patent Intelligence & Technology Report

10 Year Profile for 1990-1999

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

 206      0     0     0     0     0     0     0     0     0     1      1
 210      0     0     0     0     1     0     0     0     0     0      1
 220      0     0     0     0     0     0     0     0     0     1      1
 283      0     1     0     0     0     0     0     0     0     0      1
 346      0     0     0     0     0     0     0     0     0     1      1
 422      0     0     1     0     1     0     0     0     0     0      2
 424     10    10     4     0     1     2     2     3     5     7     44
 426      0     0     1     0     0     0     0     0     1     0      2
 435      1     4     0     0     0     1     0     0     2     2     10
 436      0     0     0     1     0     1     0     0     0     0      2
 514     27    32    22    80    45    23    37    32    20    19    337
 530      0     0     1     0     0     0     0     0     0     0      1
 540      2     1     0    12     5     1     3     3     1     5     33
 544      0     1     0     0     0     0     2     1     3     6     13
 546      1     0     1     0     2     2    10    10     5     9     40
 548      6     3     2     0     2     1     5     3     7     6     35
 549      0     0     3     0     1     0     4     1     0     2     11
 552      1     0     0     2     0     0     0     0     0     0      3
 558      0     0     0     0     0     0     0     0     0     1      1
 560      0     0     0     0     0     0     0     0     0     3      3
 564      0     0     0     0     0     0     0     2     0     0      2
 568      0     0     0     0     0     0     0     0     0     1      1
 600      0     0     0     0     0     0     2     1     1     1      5
 604      1     1     0     1     0     0     1     0     1     1      6

Total    49    53    35    96    58    31    66    56    46    66    556