Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5501479 | Kickstand bumper | Donald E. Fehrenbach | 1996-03-26 |
| 5354051 | Ball return practice device | Donald E. Fehrenbach | 1994-10-11 |
| 5078401 | Light responsive automatic golf tee | Donald E. Fehrenbach | 1992-01-07 |