Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9272464 | Article made of a shape-memory composite material, method for the production thereof, and method for retrieving stored shapes | Karl Kratz, Andreas Lendlein, Marc Behl | 2016-03-01 |
| 4638053 | Process for the preparation of chlorozincate salts of benzo thiazolium azo dyestuffs by alkylating with dialkylsulfate in aqueous medium in the presence of Zn-containing acid acceptor at pH.ltoreq.7 | Rudolf Neeb | 1987-01-20 |
| 4607071 | Process for spin-dyeing of acid-modified polymers of copolymers of acrylonitrile using rapid-fixing di-quaternary cationic dyes | Manfred Hahnke, Kurt Hohmann | 1986-08-19 |
| 4563191 | Process for dyeing, in the gel state, fiber material composed of wet spun acrylonitrile polymers using dyes with two basic groups | Manfred Hahnke, Kurt Hohmann | 1986-01-07 |
| 4557732 | Process for spin-dyeing of acid-modified polymers of acrylonitrile by the wet-spinning procedure using quaternary ammonium or cyclammonium dyestuffs of low M value and high cation weight having two or three said ammonium or cyclammonium groups | Manfred Hahnke, Kurt Hohmann | 1985-12-10 |
| 4423226 | Zinc chloride complex compounds | Rudolf Neeb | 1983-12-27 |
| 4344879 | Quaternary and basic azamethine compounds and their use as colorants | Manfred Hahnke | 1982-08-17 |
| 4269768 | Process for the preparation of chlorozincate salts of thiazolium azo dyestuffs | Rudolf Neeb, Kurt Hohmann | 1981-05-26 |
| 4252535 | Process for dyeing uniformly polyacrylonitrile fiber materials | Norbert Kollodzeiski, Rudolf Lowenfeld, Eberhard Mundlos, Kurt Hohmann | 1981-02-24 |