Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5623772 | Foot-warming system for a boot | Douglas R. Clark | 1997-04-29 |
| D346063 | Boot warmer | Douglas R. Clark | 1994-04-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5623772 | Foot-warming system for a boot | Douglas R. Clark | 1997-04-29 |
| D346063 | Boot warmer | Douglas R. Clark | 1994-04-19 |