Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12372248 | Heating device for a hob, and hob with such a heating device | Martin Roth, Kay Schmidt | 2025-07-29 |
| 10798786 | Cooking appliance with a cooking plate and with a heating device thereunder | Martin Roth, Volker Block, Michael Tafferner | 2020-10-06 |
| 6069685 | Method and apparatus for printing high quality prints from photographic negatives | Steffen Schubert | 2000-05-30 |
| 5926258 | Method of reproducing transparent masters | Wolfgang Keupp, Peter Czekal, Friedrich Jacob | 1999-07-20 |