| Inventions in 2002 | 2165 | Change in % |
| Inventions in 2003 | 2075 | -4.16% |
| Inventions in 2004 | 2026 | -2.36% |
| Inventions in 2005 | 2187 | 7.95% |
| Inventions in 2006 | 2039 | -6.77% |
| Inventions in 2007 | 1912 | -6.23% |
| Inventions in 2008 | 1820 | -4.81% |
| Inventions in 2002 | 5 | Change in % |
| Inventions in 2003 | 4 | -20.00% |
| Inventions in 2004 | 9 | 125.00% |
| Inventions in 2005 | 10 | 11.11% |
| Inventions in 2006 | 2 | -80.00% |
| Inventions in 2007 | 4 | 100.00% |
| Inventions in 2008 | 8 | 100.00% |
| USPC Class | NAICS Code | Description | Allocation |
| 280 | 23 | Construction | 14.735% |
| 280 | 31 | Manufacturing | 3.168% |
| 280 | 32 | Manufacturing | 3.636% |
| 280 | 33 | Manufacturing | 78.46% |
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 |
| 280 | 236 | Construction of Buildings | 5.681% |
| 280 | 316 | Leather and Allied Product Manufacturing | 8.382% |
| 280 | 332 | Fabricated Metal Product Manufacturing | 5.185% |
| 280 | 333 | Machinery Manufacturing | 8.83% |
| 280 | 336 | Transportation Equipment Manufacturing | 61.533% |
| 280 | 337 | Furniture and Related Product Manufacturing | 3.585% |
| 280 | 339 | Miscellaneous Manufacturing | 6.804% |