Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4716664 | Bowling shoes and improved heel construction therefor | — | 1988-01-05 |
| 4632396 | Bowling ball | — | 1986-12-30 |
| 4359221 | Method for assisting bowlers in maintaining an optimum follow-through angle | — | 1982-11-16 |
| 4233846 | Method and apparatus for measuring the imbalance of a bowling ball | — | 1980-11-18 |