Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10954827 | Desmodromic valve train | Roger Stone, David Kelly, Richard Tyrrell | 2021-03-23 |
| 10077687 | Desmodromic valve systems and methods of operation thereof | Roger Stone | 2018-09-18 |