Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D531116 | Tire tread | Richard Heinen, Nicolas Claude Jean-Claude Froger | 2006-10-31 |
| D508017 | Tire tread | Richard Heinen | 2005-08-02 |
| D492642 | Tire tread | Richard Heinen | 2004-07-06 |