Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4211594 | Joining together shaped bodies of polytetrafluoroethylene | Gunter Freitag, Gerhard Ullmann, Gunter Wenzel | 1980-07-08 |
| 4197149 | Method for joining together shaped bodies of polytetrafluoroethylene | Gunter Freitag, Gerhard Ullmann, Gunter Wenzel | 1980-04-08 |