| Inventions in 2002 | 399 | Change in % |
| Inventions in 2003 | 422 | 5.76% |
| Inventions in 2004 | 389 | -7.82% |
| Inventions in 2005 | 463 | 19.02% |
| Inventions in 2006 | 430 | -7.13% |
| Inventions in 2007 | 471 | 9.53% |
| Inventions in 2008 | 487 | 3.40% |
| Inventions in 2002 | 12 | Change in % |
| Inventions in 2003 | 5 | -58.33% |
| Inventions in 2004 | 4 | -20.00% |
| Inventions in 2005 | 5 | 25.00% |
| Inventions in 2006 | 3 | -40.00% |
| Inventions in 2007 | 2 | -33.33% |
| Inventions in 2008 | 4 | 100.00% |
| USPC Class | NAICS Code | Description | Allocation |
| 384 | 23 | Construction | 53.794% |
| 384 | 32 | Manufacturing | 5.168% |
| 384 | 33 | Manufacturing | 41.038% |
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 |
| 384 | 236 | Construction of Buildings | 31.247% |
| 384 | 326 | Plastics and Rubber Products Manufacturing | 3.727% |
| 384 | 332 | Fabricated Metal Product Manufacturing | 50.938% |
| 384 | 333 | Machinery Manufacturing | 8.534% |
| 384 | 336 | Transportation Equipment Manufacturing | 3.415% |
| 384 | 339 | Miscellaneous Manufacturing | 2.139% |