Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5574419 | Unique electrical coil with tap | — | 1996-11-12 |
| 5485669 | Method of making an electrical coil | — | 1996-01-23 |
| 5440286 | Electrical transformer structure with coil covers | Henry Pikul, John A. Larson, Dale C. McClurg | 1995-08-08 |
| 5430354 | HID lamp and auxiliary lamp ballast using a single multiple function switch | Glenn D. Garbowicz, Edmond Daniel | 1995-07-04 |
| 5175469 | Combination including an emergency lighting arrangement | — | 1992-12-29 |
| 5132870 | Ignitor circuit for discharge lamps with novel ballast | — | 1992-07-21 |
| 5103153 | Control equipment for multi-speed electric motors | — | 1992-04-07 |
| 5072156 | Ballast circuit with means to disconnect power factor capacitor | — | 1991-12-10 |
| 5051664 | Ignitor circuit for discharge lamps with novel ballast | — | 1991-09-24 |
| 5017840 | Ignitor circuit for discharge lamps with novel ballast | — | 1991-05-21 |
| 5013977 | Ignitor for high pressure arc discharge lamps | — | 1991-05-07 |
| 4977346 | High pressure sodium discharge lamp having gas filled outer envelope | Ray Gibson | 1990-12-11 |
| 4939430 | Ignitor circuit for discharge lamps with novel ballast | — | 1990-07-03 |
| 4847535 | Hybrid ballast for multiple discharge lamps | Robert W. Wisbey | 1989-07-11 |
| 4740861 | Thermal protection device for a dual input voltage lamp transformer/ballast apparatus | Seymour Perkins, III | 1988-04-26 |
| 4593231 | Three-way fluorescent lamp device | Robert W. Wisbey | 1986-06-03 |
| 4406976 | Discharge lamp ballast circuit | Robert W. Wisbey | 1983-09-27 |