Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653457 | Convertible table/cart apparatus | Keith S. Marmer, Richard Brown | 1997-08-05 |
| 5645078 | Mobile assessment apparatus and method | Keith S. Marmer, Richard Brown | 1997-07-08 |