Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11788442 | Engine valve actuation | Roger Stone, David Kelly | 2023-10-17 |
| 11454143 | Engine valve actuation | Roger Stone, David Kelly | 2022-09-27 |
| 11066964 | Actuation assembly and methods of operation thereof | David Yates | 2021-07-20 |
| 10954827 | Desmodromic valve train | Roger Stone, Owen Evans, David Kelly | 2021-03-23 |
| 10247111 | Valve control systems for internal combustion engines and methods of operation thereof | Roger Stone | 2019-04-02 |