Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9428613 | Process for producing polyamide that is stable during processing | Rolf-Egbert Grützner, Shankara Narayanan Keelapandal Ramamoorthy, Faissal-Ali El-Toufaili, Achim Stammer | 2016-08-30 |
| 9200115 | Process for continuously preparing copolyamides from lactams and salts of diamines and dicarboxylic acids | Christoph Plachetta, Reinhard Lang, Thomas Sauer, Jens Becker | 2015-12-01 |
| 8703879 | Continuous method for multi-staged drying and subsequent condensation of a polyamide granulate | Wolfgang Loth, Faissal-Ali El-Toufaili, Achim Stammer, Gad Kory, Jens Becker | 2014-04-22 |
| 7276573 | Method for producing monoesters and diesters of polytetrahydrofuran and of tetrahydrofuran copolymers | Rolf Pinkos, Martin Haubner, Stephan Schlitter, Stefan Käshammer, Klaus-Peter Pfaff | 2007-10-02 |
| 7074944 | Method for producing polytetrahydrofuran | Ulrich Steinbrenner, Martin Haubner, Thomas Domschke, Christoph Sigwart, Stefan Käshammer | 2006-07-11 |