Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10338793 | Messaging with drawn graphic input | — | 2019-07-02 |
| 6899630 | Universal joint yoke adapter | Marvin Hoffman | 2005-05-31 |
| 6878068 | Universal joint adapter ring | Vaughn Bigelow, Marvin Hoffman | 2005-04-12 |