Issued Patents All Time
Showing 25 most recent of 231 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9416921 | Vapor lamp assembly technique | Dale Fiene | 2016-08-16 |
| 6495969 | Series-resonant ballast having overload control | — | 2002-12-17 |
| 6472827 | Parallel-resonant inverter-type fluorescent lamp ballast | — | 2002-10-29 |
| 6459213 | Ballast for parallel-connected lamps | — | 2002-10-01 |
| 6229718 | Parallel-resonant bridge inverter | — | 2001-05-08 |
| 6211625 | Electronic ballast with over-voltage protection | — | 2001-04-03 |
| 6211619 | Electronic ballast cathode heating circuit | — | 2001-04-03 |
| 6198228 | Plug-in fluorescent lighting system | — | 2001-03-06 |
| 6181085 | Electronic ballast with output control feature | — | 2001-01-30 |
| 6172464 | Compact screw-in fluorescent lamp | — | 2001-01-09 |
| 6167278 | Combination cordless-cellular telephone system | — | 2000-12-26 |
| 6150768 | Ballast with active power factor correction | — | 2000-11-21 |
| 6150737 | Auxiliary power distribution system | — | 2000-11-21 |
| 6144445 | Electronic ballast products and systems | — | 2000-11-07 |
| 6121733 | Controlled inverter-type fluorescent lamp ballast | — | 2000-09-19 |
| 6107749 | FET-bipolar electronic ballast | — | 2000-08-22 |
| 6100643 | Modular electronic lighting system | — | 2000-08-08 |
| 6073003 | Telephone and auxiliary power distribution system | — | 2000-06-06 |
| 6017063 | Financial certificates, system and process | — | 2000-01-25 |
| 6002210 | Electronic ballast with controlled-magnitude output voltage | — | 1999-12-14 |
| 5999432 | High-efficiency bridge inverter | — | 1999-12-07 |
| 5999094 | Combination telephone and smoke alarm system | — | 1999-12-07 |
| 5998936 | Fire-initiation-safe lighting system | — | 1999-12-07 |
| 5977721 | Controlled power-factor-corrected ballast | — | 1999-11-02 |
| 5969925 | Fire-initiation-protected power distribution system | — | 1999-10-19 |