Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6316886 | Method and device for controlling the operational performance of gas discharge lamps | Alfred Trostl | 2001-11-13 |
| 6147463 | Electronic ballast for the operation of at least one gas discharge lamp | Alfred Trostl | 2000-11-14 |
| 6140771 | Method and device for detecting the rectification effect that occurs in a gas discharge lamp | Thomas Marinelli, Falk Richter | 2000-10-31 |
| 6094016 | Electronic ballast | Alfred Trostl, Christian Söhnel | 2000-07-25 |
| 6060843 | Method and control circuit for regulation of the operational characteristics of gas discharge lamps | Norbert Primisser | 2000-05-09 |
| 5661347 | Circuitry arrangement for controlling a plurality of consumers, in particular lamp ballasts | Walter V. Werner | 1997-08-26 |
| 5656891 | Gas discharge lamp ballast with heating control circuit and method of operating same | Thomas Marinelli | 1997-08-12 |
| 5600211 | Electronic ballast for gas discharge lamps | — | 1997-02-04 |
| 5544037 | Control arrangement for consumer units which are allocated to groups | — | 1996-08-06 |