Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4510302 | Formulations and their use for pigmenting and/or delustring dressing agents for leather and leather imitations | Leo Tork, Wolfgang Hohne | 1985-04-09 |
| 4481319 | Low-foam surface sizing agents for paper which contain copolymeric _maleic anhydride semi-amides | Gunter Sackmann, Joachim Probst, Friedhelm Muller, Heinz Baumgen | 1984-11-06 |
| 4442145 | Process for coating substrates with polyisocyanates and polyhydroxy polyacrylates | Joachim Probst, Bernd Riberi, Peter Hohlein | 1984-04-10 |
| 4423194 | Polyquaternary ammonium compounds, their preparation, their use in the production of paper and paper treatment agents containing them | Wilfried Lobach, Peter Haas, Guter Sackmann, Joachim Probst | 1983-12-27 |
| 4418175 | Cationic sizing agents for paper | Joachim Probst, Friedhelm Muller, Heinz Baumgen | 1983-11-29 |
| 4384056 | Aqueous dispersions based on (meth)acrylic acid alkyl ester polymers with two pronounced, substantially non-overlapping peaks in the particle size distribution within specific particle size ranges, and a process for the preparation and use thereof | Adolf Schmidt, Werner Clarenz | 1983-05-17 |
| 4384110 | Polyamines containing urea groups prepared from lactam or aminocarboxylic acid | Wilfried Lobach, Wolfgang Lehmann, Gunther Cramm, Friedhelm Muller, Janos Muszik | 1983-05-17 |
| 4348514 | Polyamines containing urea groups | Wilfried Lobach, Wolfgang Lehmann, Gunther Cramm, Friedhelm Muller, Janos Muszik | 1982-09-07 |
| 4293661 | Low molecular weight acrylate resins containing hydroxyl and tertiary amino groups | Joachim Probst, Michael Sonntag | 1981-10-06 |
| 4287299 | Process for the production of matting layers | Wolfgang Himmelmann, Rolf Brück, Wolfgang Sauerteig, Peter Kruck, Gunter Sackmann | 1981-09-01 |
| 4248963 | Method of preventing the formation of contact spots on photographic materials | Bernhard Morcher | 1981-02-03 |
| 4230812 | Pigment preparations | Leo Tork, Wolfgang Hohne | 1980-10-28 |