Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5047911 | Device for a unipolarly operated electrical circuit component | Wolfgang Sperzel, Horst Landwehr, Johann Sturmer, Friedrich-Werner Thomas | 1991-09-10 |
| 4768141 | D.c.-a.c. converter having an asymmetric half-bridge circuit | Freidrich-Werner Thomas, Wolfgang Sperzel, Johann Sturmer | 1988-08-30 |
| 4700281 | Direct-current-alternating-current inverter comprising a load which gains by forcing an output voltage of the direct-current-alternating-current inverter having a defined wave shape and frequency | Gernot Thorn, Friedrich-Werner Thomas, Johann Sturmer, Dietrich Dahlinger, Wolfgang Sperzel | 1987-10-13 |