Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11261947 | Apparatus to convert linear motion to rotary motion | John Michael Richardson, Aaron Grigg | 2022-03-01 |
| 10344671 | Helical follower internal combustion engine | John Michael Richardson | 2019-07-09 |