Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5641365 | Pre-pressurized in-line skate wheel | Neal Piper | 1997-06-24 |
| 5632829 | Pneumatic in-line skate wheel | Neal Piper | 1997-05-27 |
| 5630891 | Pneumatic in-line skate wheel | Neal Piper | 1997-05-20 |