Issued Patents All Time
Showing 25 most recent of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6040041 | Magnetic recording medium | Klaus-Dieter Götz, Helmut Jakusch, Erich Hoffmann, Hans-Georg Gottmann, Hans-Joachim Jenor +1 more | 2000-03-21 |
| 6025456 | Polyurethanes | Thomas Wunsch, Ria Kress, August Lehner, Albert Kohl, Norbert Schneider +1 more | 2000-02-15 |
| 5556918 | Polymeric materials suitable as dispersing resins | Gregor Brodt, August Lehner, Alfred Lindner, Hermann Graf, Michael Bobrich +3 more | 1996-09-17 |
| 5552229 | Magnetic recording medium containing magnetic material dispersed in a polyurethaneurea-polyurethane binder | Gregor Brodt, Attila Vass, August Lehner, Werner Lenz, Norbert Schneider | 1996-09-03 |
| 5217810 | Magnetic recording medium having a magnetic layer containing chromium dioxide particles and linolenic acid | August Lehner, Rudolf Suettinger, Michael Bobrich, Hermann Dikow, Hermann Roller +3 more | 1993-06-08 |
| 5082737 | Magnetic recording media having a branched thermoplastic polyurethane binder containing a polysiloxane component in the main chain | Michael Bobrich, Hermann Roller, August Lehner, Uwe Keppeler, Rudolf Suettinger +2 more | 1992-01-21 |
| 5075179 | Magnetic recording media | August Lehner, Rudolf Suettinger, Michael Bobrich, Hermann Dikow, Hermann Roller +3 more | 1991-12-24 |
| 5006406 | Magnetic recording media | Jenoe Kovacs, Milena Melzer, Werner Balz, Werner Lenz, Helmut Jakusch | 1991-04-09 |
| 4855394 | Reaction products and condensates based on substituted propyleneureas and their preparation | Ulrich Goeckel, Harro Petersen, Rolf Osterloh, Eberhard Schupp, Thomas Schwerzel | 1989-08-08 |
| 4752631 | Binders for cathodic electrocoating | Eberhard Schupp, Rolf Osterloh, Klaas Ahlers | 1988-06-21 |
| 4730011 | Synthetic resin containing quaternary ammonium groups, its preparation, and pigment paste produced using this resin | Rolf Osterloh, Eberhard Schupp, Klaas Ahlers | 1988-03-08 |
| 4721758 | Binders for cathodic electrocoating which contain non-tertiary basic amino groups in addition to phenolic mannich bases | Eberhard Schupp, Rolf Osterloh, Klaas Ahlers | 1988-01-26 |
| 4713406 | Binders for cathodic electrocoating | Eberhard Schupp, Rolf Osterloh, Klaas Ahlers | 1987-12-15 |
| 4713440 | Urea/polyamine/secondary monoamine/polyalcohol condensate | Rolf Osterloh, Eberhard Schupp, Klaas Ahlers | 1987-12-15 |
| 4699937 | Synthetic resin carrying basic nitrogen groups, its preparation, coating materials produced using this resin, and cathodic electrocoating | Eberhard Schupp, Rolf Osterloh, Klaas Ahlers | 1987-10-13 |
| 4663379 | Preparation of aqueous dispersions of condensates of urea and CH-acidic aldehydes, and production of surface coating binders | Kurt F. Fischer, Harro Petersen, Hellmuth Kasch, Eckehardt Wistuba | 1987-05-05 |
| 4608416 | Heat-curable surface-coating agents, and their use | Eberhard Schupp, Rolf Osterloh, Klaas Ahlers | 1986-08-26 |
| 4599371 | Preparation of self-crosslinking synthetic resins | Eberhard Schupp, Rolf Osterloh, Arnold Dobbelstein, Klaas Ahlers | 1986-07-08 |
| 4594136 | Cathodic electrocoating binders | Eberhard Schupp, Rolf Osterloh, Klaas Ahlers | 1986-06-10 |
| 4576979 | Heat-curable surface-coating agents, and their use | Eberhard Schupp, Rolf Osterloh, Klaas Ahlers | 1986-03-18 |
| 4568729 | Process for the preparation of urea condensates and their use | Eberhard Schupp, Rolf Osterloh, Klaas Ahlers | 1986-02-04 |
| 4557814 | Synthetic resin carrying basic nitrogen groups, and its preparation | Eberhard Schupp, Rolf Osterloh, Klaas Ahlers | 1985-12-10 |
| 4544687 | Heat-curable surface-coating agents, and their use | Eberhard Schupp, Rolf Osterloh, Klaas Ahlers | 1985-10-01 |
| 4543376 | Heat-curable surface-coating agents, and their use | Eberhard Schupp, Rolf Osterloh, Klaas Ahlers | 1985-09-24 |
| 4542193 | Cathodic electrocoating binders | Eberhard Schupp, Rolf Osterloh, Klaas Ahlers | 1985-09-17 |