Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6027412 | Bowling ball | Richard W. Sadles | 2000-02-22 |
| 5389042 | Bowling ball | Richard W. Sadles | 1995-02-14 |
| 5215304 | Bowling ball | Richard W. Sadles | 1993-06-01 |
| 5037096 | Bowling ball weight block | Richard W. Sadles | 1991-08-06 |