Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4403133 | Method of trimming a resistance element | Richard E. Riley | 1983-09-06 |
| 4345235 | Variable resistance device having a resistance element with laser cuts | Richard E. Riley | 1982-08-17 |
| 4278725 | Cermet resistor and method of making same | Richard E. Riley | 1981-07-14 |