Class | Class Title | 1997 | 1998 | 1999 | 2000 | 2001 | Total |
123 | Internal-Combustion Engines | 0 | 0 | 0 | 0 | 1 | 1 |
128 | Surgery (includes Class 600) | 0 | 0 | 1 | 0 | 0 | 1 |
135 | Tent, Canopy, Umbrella, or Cane | 0 | 0 | 0 | 0 | 1 | 1 |
210 | Liquid Purification or Separation | 0 | 1 | 0 | 0 | 0 | 1 |
473 | Games Using Tangible Projectile | 1 | 0 | 0 | 0 | 0 | 1 |
518 | Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof | 0 | 0 | 0 | 0 | 1 | 1 |
520 | Synthetic Resins or Natural Rubbers (includes Classes 520-528) | 0 | 0 | 0 | 0 | 1 | 1 |
ALL | ALL CLASSES | 1 | 1 | 1 | 0 | 4 | 7 |
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