Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7174949 | Heatable calender roll | Ludwig Hellenthal, Berthold Krämer, Wolfgang Krönert, Joachim Schonemann, Klaus-Peter Schramm +1 more | 2007-02-13 |
| 6278094 | Induction heating for thermal rollers | Hans-Jochen Rindfleisch, Ludwig Hellenthal, Jaxa von Schweinichen | 2001-08-21 |
| 5370177 | Controllable-temperature roll | Gustav Fey, Klaus-Peter Schramm, Ludwig Hellenthal, Berthold Krämer, Jaxa von Schweinichen | 1994-12-06 |