Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7951014 | Device for picking up golf balls | — | 2011-05-31 |
| 7559848 | Golf club | — | 2009-07-14 |
| 4743410 | Method for manufacturing a flat illumination unit | Hartmut Grethen, Udo Scheer | 1988-05-10 |