Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5441164 | Combination food and beverage plate | Michael D. Beck | 1995-08-15 |
| 5435928 | Copolymers from .alpha.-.beta.-unsaturated dicarboxylic acid esters, and their use | — | 1995-07-25 |
| 4999400 | Metal carboxylate derivatives for use in synthetic materials, emulsions and suspensions | Helmut Kuhne, Karl-Heinz Frassek, Dieter Sonderhof, Gunther Lanzrath, Fritz Steinseifer | 1991-03-12 |
| 4931197 | Copolymers for .alpha.-.beta.-unsaturated dicarboxylic acid esters wherein said esters are comprised of ethoxylated esters, methods for their production as well as their use as lubricant for the working-up of plastics | Karl-Heinz Frassek, Eduard M. Verhulst, Egenius A. Giezen | 1990-06-05 |
| 4775723 | Metal carboxylate derivatives for use in synthetic materials, emulsions and suspensions | Helmut Kuhne, Karl-Heinz Frassek, Dieter Sonderhof, Gunther Lanzrath, Fritz Steinseifer | 1988-10-04 |
| 4471019 | Water-containing water glass fibers | Arno Wegerhoff, Hans Zengel, Walter Brodowski, Ernst Seeberger, Gerhard Steenken +1 more | 1984-09-11 |
| 4434260 | Thermoplastic resin shaping with olefin/maleimide copolymer lubricant | Werner Holtvoigt, Ambar Mukerjee | 1984-02-28 |
| 4351486 | Process and a grinding stone for preparing mechanical wood pulp | Karl-Heinz Schmoller, Theodor Bahr, Ernst Bottger, Hans-Otto Henrich, Helmut Thumm | 1982-09-28 |
| 4334038 | Shaping of plastic materials containing polymeric lubricant | Karl-Heinz Frassek, Egenius A. Giezen, Eduard M. Verhulst | 1982-06-08 |
| 4332600 | Method for making silica fibers | Arno Wegerhoff, Hans Zengel, Walter Brodowski, Ernst Seeberger, Gerhard Steenken +1 more | 1982-06-01 |
| 4332601 | Method for making silica fibers | Arno Wegerhoff, Hans Zengel, Walter Brodowski, Ernst Seeberger, Gerhard Steenken +1 more | 1982-06-01 |
| 4192930 | Esterified olefin-maleic anhydride copolymers | Karl-Heinz Frassek, Werner Holtvoigt, Ambar Mukerjee | 1980-03-11 |