Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11982216 | Emissions reduction systems and methods | — | 2024-05-14 |
| 11519318 | Emissions reduction systems and methods | — | 2022-12-06 |
| 11220948 | Emissions reduction systems and methods | — | 2022-01-11 |
| 8765084 | High-efficiency catalytic converters for treating exhaust gases | Todd K. Hansen | 2014-07-01 |
| 8298504 | High-efficiency catalytic converters for treating exhaust gases | Todd K. Hansen | 2012-10-30 |
| 8034310 | High-efficiency catalytic converters for treating exhaust gases | Todd K. Hansen | 2011-10-11 |
| 7807120 | High-efficiency catalytic converters for treating exhaust gases | Todd K. Hansen | 2010-10-05 |
| 5549085 | Deflector insert for air filters | — | 1996-08-27 |