Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5009925 | Process for the production of magnetic recording carriers | Ernst Grigat, Burkhard Nippe | 1991-04-23 |
| 4985490 | Method of direct manufacture of pigmented polyurethane powder | James W. Rosthauser, Werner Rasshofer | 1991-01-15 |
| 4946535 | Polyester polyurethanes containing hydroxyl end groups and their use as adhesives | Horst Muller-Albrecht, Manfred Dollhausen | 1990-08-07 |
| 4940750 | Continuous process for the production of powdered polyisocyanate addition products and the powders produced therefrom | James W. Rosthauser | 1990-07-10 |
| 4910339 | Isocyanate derivatives containing carbodiimide groups, a process for their production and their use as additives for aqueous solutions or dispersions of plastics | Wolfgang Henning | 1990-03-20 |
| 4869965 | Process for the production of a magnetic recording medium | Johannes Gerum, Heinrich Kober | 1989-09-26 |
| 4870129 | Adhesive and use of the adhesive for the formation of bonds | Wolfgang Henning, Rudolf Hombach, Manfred Dollhausen | 1989-09-26 |
| 4868266 | Heat curable adhesive system | Rudolf Hombach | 1989-09-19 |
| 4857565 | Process for the continuous production of aqueous polyurethane dispersions and their use as a coating composition or as an adhesive | Wolfgang Henning, Peter Fuhrmann | 1989-08-15 |
| 4769436 | Polyester polyalcohols containing amino and amide groups and poly (urea) urethane produced therefrom | Manfred Beck, Rudolf Hombach | 1988-09-06 |
| 4704447 | Polyhydroxy compounds containing urea groups and either ester or amide groups, process for their preparation, and the use thereof | Gerhard Balle, Gerhard Grogler | 1987-11-03 |
| 4677030 | Magnetic storage medium | Johannes Gerum, Burkhard Nippe | 1987-06-30 |
| 4670100 | Aqueous solutions or dispersions of polyisocyanate addition products, a process for their preparation, and their use as coating compounds or as sizing agents for paper | Wolfgang Henning, Ulrich Beck, Heinz Baumgen, Joachim Konig | 1987-06-02 |
| 4623416 | Aqueous solutions or dispersions of polyisocyanate polyaddition products, a process for their production and their use as, or in the production of, adhesives | Wolfgang Henning, Rudolf Hombach, Helmut Reiff | 1986-11-18 |
| 4616061 | Aqueous solutions or dispersions of polyisocyanate addition products, a process for the production thereof and the use thereof as coating agents or as sizing agents for paper | Wolfgang Henning, Ulrich Beck, Heinz Baumgen | 1986-10-07 |
| 4574147 | Process for the production of polyurethanes, polyurethanes containing terminal aromatic amino groups and their use | — | 1986-03-04 |
| 4525590 | Simplified process for the production of polyamines by the alkaline hydrolysis of compounds containing NCO-groups | Werner Rasshofer, Klaus Konig, Holger Meyborg, Armin Zenner | 1985-06-25 |
| 4477531 | Magnetic storage medium | Robert Kohler, Burkhard Nippe, Heinrich Kober, Karlchristian Schilffarth, Bernd Quiring | 1984-10-16 |
| 4401786 | Use of water soluble electrolytes as additives in aqueous dispersions of synthetic materials and an aqueous dispersion of synthetic materials containing a water soluble electrolyte | Wolfgang Wenzel | 1983-08-30 |
| 4331717 | Aqueous dispersions or solutions of oligomeric or polymeric plastics, a process for their production and their use | Wolfgang Wenzel | 1982-05-25 |
| 4292226 | Process for the production of aqueous dispersions or solutions of polyurethane polyureas, and dispersions or solution obtainable by this process and their use | Wolfgang Wenzel | 1981-09-29 |
| 4240861 | Process for the preparation of dihydroxypolyurethanes and the use thereof as adhesives or as raw materials for adhesives | Horst Muller-Albrecht, Manfred Dollhausen, Eugen Velker | 1980-12-23 |
| 4240942 | Process for the preparation of aqueous dispersions or solutions of isocyanate polyaddition products | Wolfgang Wenzel, Josef Pedain | 1980-12-23 |