Issued Patents All Time
Showing 26–50 of 231 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5955796 | Programmable wall switch actuator/timer | — | 1999-09-21 |
| 5841241 | Electronic ballast for fluorescent lamps | — | 1998-11-24 |
| 5757140 | Electronic ballast with frequency control | — | 1998-05-26 |
| 5757144 | Gas discharge lamp ballasting means | — | 1998-05-26 |
| 5744915 | Electronic ballast for instant-start lamps | — | 1998-04-28 |
| 5736819 | Parallel-tuned electronic ballast with special output voltage waveform | — | 1998-04-07 |
| 5710489 | Overvoltage and thermally protected electronic ballast | — | 1998-01-20 |
| 5710488 | Low-frequency high-efficacy electronic ballast | — | 1998-01-20 |
| 5691603 | Electronic ballast with multiple lamp loads | — | 1997-11-25 |
| 5661802 | Auxiliary power and telephone signal distribution system | — | 1997-08-26 |
| 5640069 | Modular lighting system | — | 1997-06-17 |
| 5623531 | Auxiliary power for telephone distribution system | — | 1997-04-22 |
| 5621279 | Power-factor-corrected electronic ballast circuit | — | 1997-04-15 |
| 5614802 | Frequency, voltage and waveshape converter for a three phase induction motor | — | 1997-03-25 |
| 5608291 | Electronic ballast with pulsing output voltage | — | 1997-03-04 |
| 5559393 | Under-the-cabinet lighting system | — | 1996-09-24 |
| 5550439 | Electronic ballast having pulsating output voltage | — | 1996-08-27 |
| 5512801 | Ballast for instant-start parallel-connected lamps | — | 1996-04-30 |
| 5510694 | Storage battery with built-in charger and controls | — | 1996-04-23 |
| 5510681 | Operating circuit for gas discharge lamps | — | 1996-04-23 |
| 5510680 | Electronic ballast with special voltage waveforms | — | 1996-04-23 |
| 5498938 | High-efficacy incandescent lighting system | — | 1996-03-12 |
| 5498934 | Electronic flashlight | — | 1996-03-12 |
| 5491385 | Instant-on screw-in fluorescent lamp | — | 1996-02-13 |
| 5489823 | Electronic ballast for gas discharge lamp | — | 1996-02-06 |