Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8336354 | Interchangeable cartridge system for a straightening machine and method for operating said straightening machine | Uwe Haag, Lothar Hug, Gunter Keller | 2012-12-25 |
| 5699672 | Refrigeration method and apparatus | Hans Foerster | 1997-12-23 |
| 5507147 | Method of separating vaporous substances from air saturated with high proportions of components having a low boiling point | Hans-Joachim Forster | 1996-04-16 |