Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8959666 | Undergarment | Tim Whitley, Roger Maxey, Lauren Price | 2015-02-24 |
| 5694649 | Adjustable baseball batter's and catcher's helmet with mask | Dennis V. Hefling, Matthew Winningham | 1997-12-09 |
| 5575017 | Adjustable baseball batter's helmet | Dennis V. Hefling, Matthew Winningham, Sally Yeast | 1996-11-19 |
| 4692947 | Protective helmet, chin cup, and face guard | Walter F. Tomczak | 1987-09-15 |