Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5657008 | Electronic license plate having a secure identification device | — | 1997-08-12 |
| 5621571 | Integrated retroreflective electronic display | Thomas I. Bradshaw, Stephen W. Mohn, Edmund J. Ring | 1997-04-15 |
| 5608391 | Electronic license plate architecture | Edmund J. Ring, Wayne M. Thomas | 1997-03-04 |