Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5763717 | Process for preparing hydroxybiphenyl | Hans-Josef Buysch, Christine Mendoza-Frohn, Jurgen Scharschmidt, Ulrich Notheis, Gerhard Darsow | 1998-06-09 |
| 5625097 | Process for preparing diphenylamines and catalysts usable for this purpose | Hans-Josef Buysch, Christine Mendoza-Frohn, J urgen Scharschmidt, Ulrich Notheis, Gerhard Darsow | 1997-04-29 |
| 5130065 | Method of preparing polyacrylonitrile hollow threads with asymmetric pore structure | Gunter Turck, Wilfried Naunheim, Theo Neukam | 1992-07-14 |
| 4900455 | Finishes for stable fibers of synthetic polymers | Joachim Kolbe, Ferdinand Kummeler, Ralf Miessen | 1990-02-13 |
| 4863478 | Dressing agent for synthetic fibers | Joachim Kolbe, Ferdinand Kummeler, Ralf Miessen | 1989-09-05 |
| 4288893 | Method of cooling stuffer crimped yarn | Heiko Herold, Richard Herold, Edgar Muschelknautz | 1981-09-15 |
| 4240187 | Method and apparatus for placing thread in a texturing apparatus at supersonic speeds | Heiko Herold, Richard Herold, Edgar Muschelknautz | 1980-12-23 |