Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5071923 | Surface-active copolymers and their use for the production of polyurethane powders | Tillmann Hassel, Hanns P. Muller, Hugo Vernaleken, Rolf Dhein | 1991-12-10 |
| 5061756 | Process for the preparation of polyurethane powders | Tillmann Hassel, Hanns P. Muller, Hugo Vernaleken, Rolf Dhein | 1991-10-29 |
| 4889908 | Polyethers and their use as mold release agents for plastics | Joachim Franke, Wilhelm Goyert | 1989-12-26 |