Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6214951 | Cycloolefin copolymers having high tear strength and low optical attenuation | Michael-Joachim Brekner, Frank Osan | 2001-04-10 |
| 5637400 | Cycloolefin copolymers having low melt viscosity and low optical attenuation | Michael-Joachim Brekner, Frank Osan | 1997-06-10 |
| 5039779 | Thermoplastically processible aromatic polyetheramide from 2,2-bis(4'-amino phenoxy phenyl) propane and terephthalic acid | Harald Cherdron, Friedrich Herold, Reiner Hess | 1991-08-13 |
| 4966955 | Aromatic copolyether amide which can be processed as a thermoplastic, process for its preparation, and its use for the production of molding | Harald Cherdron, Friedrich Herold, Reiner Hess | 1990-10-30 |
| 4636557 | Process for the preparation of aromatic polyethers with mixture of carbonate catalysts | — | 1987-01-13 |