Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693842 | Process for preparing phosphorus-containing dicarboxylic acids alkyl esters thereof | Hans-Jerg Kleiner, Volker Freudenberger | 1997-12-02 |
| 5662852 | Mass-colored formed structures based on aromatic polyamides, mass-colored fiber, and premix for producing mass-colored formed structures | Uwe Kampschulte, Richard Neuert | 1997-09-02 |
| 5646234 | Production of fibers or films using specific forming solutions and the fibers of films obtainable thereby | Holger Jung, Richard Neuert, Georg-Emerich Miess | 1997-07-08 |