Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D321032 | Holder for golf balls and accessories | Robert H. Marthaler | 1991-10-22 |
| 4927052 | Golf ball package, holder and dispenser | Robert H. Marthaler | 1990-05-22 |
| 4738060 | Permanent marker for utilities | Robert H. Marthaler | 1988-04-19 |
| 4624480 | Magazine and directory cover and holder assembly | Robert H. Marthaler | 1986-11-25 |