| Inventions in 2002 | 112 | Change in % |
| Inventions in 2003 | 141 | 25.89% |
| Inventions in 2004 | 160 | 13.48% |
| Inventions in 2005 | 194 | 21.25% |
| Inventions in 2006 | 186 | -4.12% |
| Inventions in 2007 | 217 | 16.67% |
| Inventions in 2008 | 249 | 14.75% |
| Inventions in 2002 | 13 | Change in % |
| Inventions in 2003 | 10 | -23.08% |
| Inventions in 2004 | 13 | 30.00% |
| Inventions in 2005 | 18 | 38.46% |
| Inventions in 2006 | 12 | -33.33% |
| Inventions in 2007 | 10 | -16.67% |
| Inventions in 2008 | 6 | -40.00% |
| USPC Class | NAICS Code | Description | Allocation |
| 48 | 21 | Mining, Quarrying, and Oil and Gas Extraction | 51.319% |
| 48 | 23 | Construction | 3.203% |
| 48 | 32 | Manufacturing | 7.238% |
| 48 | 33 | Manufacturing | 38.24% |
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).
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| USPC Class | NAICS Code | Description | Allocation |
| 48 | 211 | Oil and Gas Extraction | 15.628% |
| 48 | 213 | Support Activities for Mining | 23.314% |
| 48 | 324 | Petroleum and Coal Products Manufacturing | 7.607% |
| 48 | 327 | Nonmetallic Mineral Product Manufacturing | 8.807% |
| 48 | 332 | Fabricated Metal Product Manufacturing | 8.337% |
| 48 | 333 | Machinery Manufacturing | 22.237% |
| 48 | 335 | Electrical Equipment, Appliance, and Component Manufacturing | 14.069% |