| Inventions in 2002 | 375 | Change in % |
| Inventions in 2003 | 312 | -16.80% |
| Inventions in 2004 | 336 | 7.69% |
| Inventions in 2005 | 326 | -2.98% |
| Inventions in 2006 | 332 | 1.84% |
| Inventions in 2007 | 353 | 6.33% |
| Inventions in 2008 | 340 | -3.68% |
| Inventions in 2002 | 1 | Change in % |
| Inventions in 2003 | 1 | 0.00% |
| Inventions in 2004 | 1 | 0.00% |
| Inventions in 2005 | 3 | 200.00% |
| Inventions in 2006 | 0 | ZERO! |
| Inventions in 2007 | 0 | ZERO! |
| Inventions in 2008 | 1 | 0.00% |
| USPC Class | NAICS Code | Description | Allocation |
| 564 | 32 | Manufacturing | 100% |
There are rounding errors experienced when converting USPC Classes to NAICS codes. Items with less than ~2.5% influence in a category are removed for clarity. For instance, multiple Micro classes can sum up to a Macro class greater than 2.5% without being delineated. Or a Macro view shows a number far larger than the sum of Micro categories because many small contributors were not shown. Eliminating categories (Macro or Micro) with less than ~2.5% influence results in small differences between the figures above and those below (to the right).
Click for reference papers.
| USPC Class | NAICS Code | Description | Allocation |
| 564 | 324 | Petroleum and Coal Products Manufacturing | 8.163% |
| 564 | 325 | Chemical Manufacturing | 89.09% |
| 564 | 326 | Plastics and Rubber Products Manufacturing | 2.747% |