Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5034621 | Inductive proximity switch exhibiting magnetic field immunity | John P. Groves, Joseph Lazzaro, Gregory L. Nadolski | 1991-07-23 |
| 4937460 | Thickness sensor | Eugene F. Duncan, Gregory L. Nadolski | 1990-06-26 |
| 4904941 | Gauge for detecting misalignment | Eugene F. Duncan, Gregory L. Nadolski | 1990-02-27 |
| 4891589 | Displacement gauge that combines vector signals | — | 1990-01-02 |
| 4626683 | Through-beam optical detector system with alignment aid | — | 1986-12-02 |
| 4543527 | Proximity switch exhibiting improved start-up characteristics | Russell P. Schuchmann | 1985-09-24 |
| 4482818 | Universal field convertible 3-wire switch | Lawrence J. Ryczek | 1984-11-13 |
| 4329730 | D.C. Switch circuit | Lawrence J. Ryczek | 1982-05-11 |
| 4301508 | Digital processing system for time-of-day and demand meter display | John Aaron Anderson, Richard C. Born, Frank A. Knopf, Richard R. Sabroff, Herman P. Schutten | 1981-11-17 |
| RE30678 | Dormant oscillator ground to neutral protection for ground fault interrupters | Russell P. Schuchmann | 1981-07-14 |
| 4216515 | Ground fault interrupter | — | 1980-08-05 |
| 4199694 | Terminal convertible alternating current switch | — | 1980-04-22 |