Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7119220 | Process for preparing dimethyl propanephosphonate | Jan-Gerd Hansel, Johannes Kaulen, Hans-Georg Adams, Hans-Günter Fröhlen | 2006-10-10 |
| 7087670 | Flame-resistant intumescent mixtures | Martin Hoch, Otto Mauerer | 2006-08-08 |
| 5693260 | Temperature-resistant bonding and coating agents low in flue gas and the use thereof | Wulf von Bonin | 1997-12-02 |
| 5639800 | Production of flame resistant, halogen-free polyurethane/polyureas | Wulf von Bonin, Hanns P. Muller | 1997-06-17 |
| 5300140 | Hydroprimer for metallising substrate surfaces | Gerhard D. Wolf, Ulrich von Gizycki, Wolfgang Cohnen, Gunther Reichert | 1994-04-05 |
| 5178670 | Color former | Gunther Klug, Horst Berneth | 1993-01-12 |
| 5094688 | Triarylmethane color-forming agents | Udo Eckstein, Hubertus Psaar | 1992-03-10 |
| 5092925 | Mixture of 3,1-benzoxazines and fluoranes | Horst Berneth, Gunter Klug | 1992-03-03 |
| 5024987 | Recording material | Gunter Klug, Horst Berneth, Artur Botta | 1991-06-18 |
| 5017707 | Tetraindolylheptamethine dyestuffs | Horst Berneth, Hubert Psaar | 1991-05-21 |
| 4929710 | Hydroxycarboxylic acid/Unsaturated aromatic hydrocarbon resin useful as recording material | Thomas Scholl, Adolf Richartz | 1990-05-29 |
| 4879368 | Oligobenzylated hydroxycarboxylic acid derivative | Artur Botta | 1989-11-07 |
| 4874832 | Microcapsules having polyurethane walls | Adolf Richartz | 1989-10-17 |
| 4847152 | Microcapsules with improved polyurea walls | Ulrich Nehen, Hans-Joachim Scholl | 1989-07-11 |
| 4831141 | Chromogenic 3,1-benzoxazines | Horst Berneth | 1989-05-16 |
| 4786729 | Benzimidazolo-quinazolines | Holger Heidenreich | 1988-11-22 |
| 4761255 | Process for the continuous production of microcapsules | Manfred Dahm, Bernd Koglin, Hildegard Schnoring | 1988-08-02 |
| 4687853 | Imidazo[1,5-A]pyridylmethanes | Hans-Volker Runzheimer, Ulrich Nehen | 1987-08-18 |
| 4668580 | Continuous production of microcapsule dispersions | Manfred Dahm, Georg Wawra | 1987-05-26 |
| 4592957 | Microcapsules having walls of polyaddition products of water-insoluble polyamines with water-soluble polyisocyanate adducts | Manfred Dahm, Norbert Weimann, Ulrich Nehen, Hanns P. Muller, Albert Awater +1 more | 1986-06-03 |
| 4528153 | Process for producing molded particulate articles utilizing a self-releasing binder based on a sulfonic acid modified isocyanate | Hans-Joachim Scholl, Hanns I. Sachs, Gunther Loew | 1985-07-09 |
| 4517141 | Production of microcapsules having walls of polyaddition products of water-insoluble polyamines with water-soluble polyisocyanate adducts | Manfred Dahm, Norbert Weimann, Ulrich Nehen, Hanns P. Muller, Albert Awater +1 more | 1985-05-14 |
| 4489017 | Spray drying of microcapsule dispersions | Heinrich Alberts, Manfred Dahm, Christian Wegner | 1984-12-18 |
| 4478738 | Self-releasing binder based on isocyanate and the use thereof in a process for the production of molded articles | Hans-Joachim Scholl, Hanns I. Sachs, Gunther Loew | 1984-10-23 |
| 4428978 | Concentrated microcapsule suspensions for reaction copying papers | Gunther Baatz, Manfred Bock, Manfred Dahm, Artur Haus, Christian Wegner | 1984-01-31 |