Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D441325 | Tire tread | Johnny Irvin Scruggs, Jeffrey Al Pyle | 2001-05-01 |
| D419502 | Tire tread | Robert Vanstory Teeple, Frank S. Willis | 2000-01-25 |
| D405731 | Tire tread | Frank S. Willis, Robert Vanstory Teeple | 1999-02-16 |
| D402942 | Tire tread | Frank S. Willis, William A. Downey | 1998-12-22 |