Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6463825 | Brake turntable for actuating a brake system for a walker | — | 2002-10-15 |
| 6378663 | Brake mechanism for a walker | — | 2002-04-30 |
| 5853226 | High performance in-line roller skate wheels with permeable cores | — | 1998-12-29 |
| D391331 | High performance core for an in-line roller skate wheel | — | 1998-02-24 |
| 5709395 | Three wheel roller skate | — | 1998-01-20 |
| D388145 | Three wheel roller skate | — | 1997-12-23 |
| D384718 | Core for high performance in-line roller skate wheel | — | 1997-10-07 |
| 5655784 | High performance in-line roller skate wheels | — | 1997-08-12 |
| 5655785 | High performance in-line roller skate wheels | — | 1997-08-12 |
| D378968 | Shock absorbing cone cushion material | Jack L. Martin | 1997-04-29 |
| 5517770 | Shoe insole | Jack L. Martin | 1996-05-21 |
| D362956 | Shoe insole | Jack L. Martin | 1995-10-10 |
| D283291 | Unloading tool tip | Julius A. Ellis, Raymond Gene Duncan | 1986-04-08 |