Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5362834 | Gel compounds, their production and use | Heinz-Dieter Ebert, Hartwig Grammes | 1994-11-08 |
| 5173515 | Fire retardant foams comprising expandable graphite, amine salts and phosphorous polyols | Wulf von Bonin | 1992-12-22 |
| 4980072 | Process for the removal of surface-distributed hydrocarbons, in particular oil residues | Thomas Augustin, Peter Nowak | 1990-12-25 |
| 4902348 | Reinforced plasterboard and method of forming | Gert Kossatz, Heinz Sattler, Rudiger Kammerer, Hanns I. Sachs | 1990-02-20 |
| 4826948 | Impregnating agent and its use | Bernhard Jansen, Hanns P. Muller, Roland Richter, Rudolf Schmidt | 1989-05-02 |
| 4810536 | Method of impregnating | Bernhard Jansen, Hanns P. Muller, Roland Richter, Rudolf Schmidt | 1989-03-07 |
| 4748974 | Laminated dressing | Roland Richter, Wolfram Mayer, Hanns P. Muller, Dietmar Strache | 1988-06-07 |
| 4681851 | Biologically active composition for purifying waste water and outgoing air | Jorg Baumgarten, Werner Frommer, Theo Mann, Imre Pascik, Hans-Georg Rast | 1987-07-21 |
| 4661099 | Self-adhesive sheet-like structures, process for their preparation and their use | Miklos von Bittera, Ulrich von Gizycki, Roland Rupp | 1987-04-28 |
| 4634672 | Immobilization of cells in polyurethane hydrogel | Jorg Baumgarten, Werner Frommer, Theo Mann, Imre Pascik, Hans-Georg Rast | 1987-01-06 |
| 4570622 | Constructional material | Wulf von Bonin, Ulrich von Gizycki, Kuno Wagner | 1986-02-18 |
| 4544547 | Ectoparasiticide-containing polyurethanes | Miklos von Bittera, Hubert Dorn, Wilhelm Stendal, Herbert Voege, Manfred Federman +1 more | 1985-10-01 |
| 4543247 | Ectoparasiticide-containing collars for pets | Miklos von Bittera, Manfred Federmann, Ulrich von Gizycki, Wilhelm Stendel, Herbert Voege +1 more | 1985-09-24 |
| 4469502 | Ion exchanger fertilizers and a process for supplying plants with nutrients uniformly and over a long period of time | Harold Heller | 1984-09-04 |
| 4456642 | Gel pads and a process for their preparation | Hans-Heribert Burgdorfer, Gottfried Schneider, Wulf von Bonin, Ulrich von Gizycki | 1984-06-26 |
| 4452905 | Aqueous preparation and its use for the preparation of ceramic masses | Franz Drinkuth, Wulf von Bonin, Artur Lorenz | 1984-06-05 |
| 4448914 | Aqueous preparation and its use in the production of ceramic compositions | Franz Drinkuth, Wulf von Bonin, Artur Lorenz | 1984-05-15 |
| 4411262 | Constructional material | Wulf von Bonin, Ulrich von Gizycki, Kuno Wagner | 1983-10-25 |
| 4404296 | Gel compositions with depot action based on a polyurethane matrix and relatively high molecular weight polyols and containing active ingredients, and a process for their preparation | — | 1983-09-13 |
| 4402725 | Fertilizers | Harold Heller, Claus Hentschel, Manfred Dahm | 1983-09-06 |