Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646234 | Production of fibers or films using specific forming solutions and the fibers of films obtainable thereby | Holger Jung, Richard Neuert, Peter Klein | 1997-07-08 |
| 5616683 | Process for maintaining of improving the mechanical properties of fibers of aromatic copolyamides in alkaline media and shaped articles containing such fibers | Richard Neuert | 1997-04-01 |
| 5536408 | Hydrophilic, asymmetric, chemically-resistant polyaramide membrane | Reinhard Wagener, Jürgen Schneider, Ulrich Delius, Friedrich Herold, Ulrich Meyer-Blumenroth | 1996-07-16 |
| 5462643 | Method for reprocessing solvent mixtures containing constituents of low volatility and apparatus suitable therefor | Peter Roth, Karl Heinrich, Siegfried Rewitzer | 1995-10-31 |
| 5399431 | Fiber materials from homogeneous blends of aromatic polyamides and poly-N-vinylpyrrolidone, production thereof, and use thereof | Peter Klein | 1995-03-21 |
| 5357031 | Aromatic copolyamides, process for their preparation and shaped articles made therefrom | Karl Heinrich, Peter Klein | 1994-10-18 |
| 5290907 | Automatic copolyamide | Peter Klein, Karl Heinrich | 1994-03-01 |
| 5266672 | Aromatic copolyaide from diamino benzanilide | Peter Klein, Karl Heinrich | 1993-11-30 |
| 5097015 | Fully aromatic copolyamide from 4,4'-diamino benzanilide | Peter Klein | 1992-03-17 |
| 5068358 | Process for extracting N-methyl-2-pyrrolidone | Karl-Heinz Schwarz, Heribert Tetzlaff, Bernhard Wojtech | 1991-11-26 |