Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6549371 | Automatic rewind detection for magnetic tape cassettes | Richard L. Copeland, Hubert A. Patterson | 2003-04-15 |
| 5625341 | Multi-bit EAS marker powered by interrogation signal in the eight MHz band | Hubert A. Patterson, Richard B. Frederick, David B. Ferguson | 1997-04-29 |