Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D772985 | Hand sign | Mark S. Thomas | 2016-11-29 |
| 5642335 | Clock | — | 1997-06-24 |
| 5421732 | Apparatus and method for teaching addition and subtraction | — | 1995-06-06 |
| 4623934 | AGC update apparatus and method of using same | — | 1986-11-18 |
| 4572557 | Locking device for sliding doors and/or windows | — | 1986-02-25 |