Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4667307 | Circuit for selecting and locking in operation function circuitry | Thomas C. Porcher, David B. Hughes | 1987-05-19 |
| 4639891 | Signals path control circuitry for a data terminal | Thomas C. Porcher | 1987-01-27 |