Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5927238 | Valve timing for four stroke internal combustion engines | — | 1999-07-27 |
| 5829407 | Internal combustion engines | Darren A. Smith, Robert Walter Frew | 1998-11-03 |
| 5655365 | Method of operating an internal combustion engine | David Richard Worth, Jorge Manuel Jardim da Silva | 1997-08-12 |
| 5392828 | Refillable liquid reservoir | Sam R. Leighton, Peter W. Czwienczek | 1995-02-28 |
| 5245974 | Treatment of fuel vapor emissions | Darren A. Smith, Stuart A. Higgins, Christopher N. F. Sayer | 1993-09-21 |