Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6664519 | Touch-sensitive operating panel for cooking zones | Alfred Kotouczek | 2003-12-16 |
| 5673680 | Gas-heated apparatus | Christoph Paul Kalmer, Gerhard Becke | 1997-10-07 |
| 4993052 | Digitally-operating electrical equipment with counter for automatically adapting output to 50 Hz or 60 Hz input | — | 1991-02-12 |
| 4855971 | Time adjustment arrangement for digital displays | Alfred Meisner | 1989-08-08 |