Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5630762 | Method of making a bowling pin having expanded copolymer core | — | 1997-05-20 |
| 5354239 | Bowling pin with interlocking shell to form core and base | — | 1994-10-11 |
| 4569521 | Composite baseball bat having swaged spar and plastic foam covering | — | 1986-02-11 |
| 4351786 | Method for making a stress-relieved composite foamed resin baseball bat or bowling pin | — | 1982-09-28 |