Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6235925 | Process for synthesizing khi-substituted ring systems | Christoph Gürtler, Manfred Jautelat, Helmut Greiving | 2001-05-22 |
| 5942593 | Cycloaliphatic thermoplastic polyurethane elastomers | Heinz Pudleiner, Rolf Dhein, Hanns P. Muller, Herbert Heidingsfeld, Hans-Georg Hoppe | 1999-08-24 |
| 5430121 | Thermoplastic polyurethanes modified by siloxane block copolymers | Heinz Pudleiner, Rolf Dhein, Hanns P. Muller | 1995-07-04 |
| 5391641 | Segmented N-alkyl polyurethane amides | Burkhard Kohler, Rolf Dhein | 1995-02-21 |
| 5374704 | Pure, in particular catalyst-free polyurethanes | Hanns P. Muller, Rolf Dhein, Heinz Pudleiner | 1994-12-20 |
| 5310557 | Shaped articles based on polyether block amide elastomers | Heinz-Dieter Brandt, Rolf Dhein, Doris Hackemuller, Wilhelm Stendel | 1994-05-10 |
| 5308489 | Blends of polyether copolycarbonates and high molecular weight film-forming thermoplastics | Rolf Dhein, Wolfgang Ebert, Holger Ohst | 1994-05-03 |
| 5298583 | Polymer dyestuffs and preparation and use thereof | Ludger Heiliger, Hans-Ulrich Siegmund, Antonius Lobberding, Eberhard Kuckert, Bruno Bomer +2 more | 1994-03-29 |
| 5273952 | Dye acceptor element for thermosublimation printing | Rolf Wehrmann, Dittmar Nerger | 1993-12-28 |
| 5260129 | Polyether/polycarbonate block copolymer coatings for plastic moldings | Thomas Scholl, Wolfgang Nising | 1993-11-09 |
| 5238570 | Asymmetric semipermeable membranes of aromatic polycondensates, processes for their preparation and their use | Rolf Dhein, Ralf Dujardin, Karlheinz Hildenbrand, Knud Reuter | 1993-08-24 |
| 5160436 | Asymmetric sandwich membrane system having reduced ascorbate interference | Karlheinz Hildenbrand, Rolf Dhein | 1992-11-03 |
| 5070198 | AS-triazine compounds | Piero Fossati, Holger Heidenreich, Klaus Wehling | 1991-12-03 |
| 5030697 | Polymer-bound dyes, process for their production and use | Bruno Bomer, Heinz Kolbl, Florin Seng, Eberhard Kuckert, Gunter Sackmann | 1991-07-09 |
| 5017498 | Indicator compounds, method of their preparation and use of those compounds in an iron assay system | Piero Fossati, Holger Heidenreich, Klaus Wehling | 1991-05-21 |
| 4988616 | Method for detecting hydrogen peroxide employing triaryl- and trihetarylmethane derivatives as redox indicators | Holger Heidenreich, Gerhard Wolfrum, Klaus Wehling | 1991-01-29 |
| 4962040 | 2-hydrazono-4,6-dinitrobenzthiazolones useful to form dyestuffs and as color formers for detecting peroxide | Aloysius Engel, Klaus Wehling | 1990-10-09 |
| 4814271 | Method for detecting esterolytic and proteolytic enzymes | Hans-Volker Runzheimer, Eugen Schnabel, Gerhard Wolfrum | 1989-03-21 |
| 4806423 | Agents and process for the detection of esterolytic and/or proteolytic enzymes | Eugen Schnabel | 1989-02-21 |
| 4723020 | Chromogenic amino acid esters and peptide esters | Eugen Schnabel | 1988-02-02 |
| 4637979 | Composition and test device for determining the presence of leukocytes containing a zwitterion coupling agent | A. Christopher Skjold, Gerhard Wolfrum | 1987-01-20 |
| 4556401 | Process for dyeing amide-containing fibre materials | Robert Weitz, Rutger Neeff | 1985-12-03 |
| 4439372 | Process for the preparation of styryl dyestuffs | Gerhard Wolfrum, Klaus-Friedrich Lehment | 1984-03-27 |
| 4339380 | Azo dyestuffs | Gerhard Wolfrum, Winfried Mennicke, Karl H. Schundehutte, Jochen Westphal | 1982-07-13 |
| 4249275 | Process for dyeing and printing cellulose fibres | Gerhard Wolfrum, Henning Reel, Werner Kunnel, Robert Kuth, Wilhelm Gohrbandt | 1981-02-10 |