Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4391146 | Parallel T impedance measurement circuit for use with variable impedance sensor | — | 1983-07-05 |
| 4381677 | Reactance measurement circuit | James R. Ruesch, Roger L. Frick | 1983-05-03 |
| RE30597 | Two wire current transmitter responsive to a resistive temperature sensor input signal | — | 1981-05-05 |
| RE30603 | Two wire current transmitter responsive to a resistance sensor input signal | — | 1981-05-05 |