Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7791054 | Photo controller for switching a load in a hazardous environment | Subodh Ghildyal | 2010-09-07 |
| 6363785 | Relative location detection sensor | Karl A. Senghaas, Peter Senghaas, Jerzy Michalec, Peter T. Kolonko, Jr. | 2002-04-02 |
| 5801494 | Rapid restrike with integral cutout timer | Donald C. Herres | 1998-09-01 |
| 5592033 | Photocell switching circuit | — | 1997-01-07 |