Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8707689 | Exhaust system for an internal combustion engine | Michael Spencer-Smith, James Stewart Grant, Adam Weidauer | 2014-04-29 |
| 8671671 | Exhaust system for an internal combustion engine | Michael Spencer-Smith | 2014-03-18 |