Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4318640 | Lifting island | Peter Schiemichen | 1982-03-09 |
| 4246212 | Method and apparatus for optimizing the output of a blown film extruder plant by means of a process computer | Hartmut Upmeier, Helmut Helbig, Gerhard Winkler, Ferdinand Loning | 1981-01-20 |