Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8079161 | Sports shoe | Frank Drollinger | 2011-12-20 |
| 7955181 | Device for practicing a sequence of movement in the golf swing | Frank Drollinger | 2011-06-07 |
| 7549239 | Sports shoe having movable ground engaging elements | Frank Drollinger | 2009-06-23 |