Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4739225 | Reduced requirement energy storage for load having non-zero minimum operating potential | Victor D. Roberts, George Jernakoff | 1988-04-19 |
| 4620258 | Circuit for self-commutated turn-off of latched devices, such as of the insulated-gate transistor/rectifier type | — | 1986-10-28 |
| 4617508 | Reverse phase-control apparatus for multiplexing interconnections between power switching and control circuit modules | — | 1986-10-14 |
| 4584525 | Current-shunt system for known conductors | John D. Harnden, Jr., Henry A. F. Rocha | 1986-04-22 |
| 4580088 | Soft-starting phase-control circuit for low voltage load | — | 1986-04-01 |
| 4567425 | Method of and apparatus for half-cycle-average or R.M.S. load voltage control | — | 1986-01-28 |
| 4547828 | Circuit for preventing excessive power dissipation in power switching semiconductors | — | 1985-10-15 |
| 4540893 | Controlled switching of non-regenerative power semiconductors | — | 1985-09-10 |
| 4528494 | Reverse-phase-control power switching circuit and method | — | 1985-07-09 |
| 4513207 | Alternating comparator circuitry for improved discrete sampling resistance control | — | 1985-04-23 |
| 4500838 | Current sensor | — | 1985-02-19 |
| 4488199 | Protection circuit for capacitive ballast | — | 1984-12-11 |
| 4467245 | Current-limited spark gap for transient protection | Francois D. Martzloff | 1984-08-21 |
| 4461990 | Phase control circuit for low voltage load | — | 1984-07-24 |
| 4421993 | Load resistance control circuitry | — | 1983-12-20 |
| 4360847 | Diode assisted relay contactor | Joseph L. Ciccone, John D. Harnden, Jr., William P. Kornrumpf, Donald Shattuck | 1982-11-23 |
| 4300392 | Interchangeable networks with non-linear sensors and method of producing such networks | John D. Harnden, Jr., Denise A. Deallenbach | 1981-11-17 |
| 4296632 | Temperature-to-frequency conversion apparatus | William P. Kornrumpf | 1981-10-27 |