Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7682261 | Bowlers finger pad shield | W. Robert Addington | 2010-03-23 |
| 7264553 | Method for improving a bowler's control over the release of a bowling ball from the bowling ball finger grip hole | W. Robert Addington | 2007-09-04 |
| 6938274 | Reinforced bowler's finger support | W. Robert Addington | 2005-09-06 |
| 6658669 | Bowler's finger support and control | W. Robert Addington, Joel I. Rosenblatt | 2003-12-09 |