Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6554721 | Golf club head | Robert A. Bottema | 2003-04-29 |
| 6363567 | Vehicle mounted retractable golf shoe brush | — | 2002-04-02 |
| 6186907 | Selectively positionable golf tee | — | 2001-02-13 |
| 6089993 | Golf club head | Robert A. Bottema | 2000-07-18 |