Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7174949 | Heatable calender roll | Ludwig Hellenthal, Berthold Krämer, Wolfgang Krönert, Walter Patt, Joachim Schonemann +1 more | 2007-02-13 |
| 7018512 | Roll, in particular, calender roll | Klaus-Peter Schramm, Wolfgang Wiertz, Ludwig Hellenthal | 2006-03-28 |
| 6793008 | Rotatable roller | — | 2004-09-21 |
| 6278094 | Induction heating for thermal rollers | Hans-Jochen Rindfleisch, Ludwig Hellenthal, Walter Patt | 2001-08-21 |
| 5370177 | Controllable-temperature roll | Gustav Fey, Klaus-Peter Schramm, Ludwig Hellenthal, Berthold Krämer, Walter Patt | 1994-12-06 |