Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6906474 | Three-phase electronic ballast | Grigoriy A. Trestman, Joseph L. Parisella | 2005-06-14 |
| 6680587 | Electronic ballast with adaptable charge pump power factor correction | Grigoriy A. Trestman, Joseph L. Parisella | 2004-01-20 |
| 6291947 | Circuit arrangement for operating at least one discharge lamp | Olaf Busse, Martin Grabner | 2001-09-18 |
| 6191677 | Inductance element | Bernhard Orben, Rene Twardzik, Jerzy Cierpinski, Olaf Busse, Martin Grabner +2 more | 2001-02-20 |