Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6935293 | Oil circuit for twin cam internal combustion engine | Kevin G. Bonde, Terrence M. Rotter, Robert W. Richards, William D. Koenigs, Reid L. Hanson | 2005-08-30 |
| 6739304 | Cross-flow cylinder head | Robert W. Richards, Terrence M. Rotter | 2004-05-25 |