Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5635211 | Microcapsules having walls made of polyisocyanate/guanidine reaction products | Jurgen Weisser | 1997-06-03 |
| 4882362 | Foamed microbeads and a process for their preparation | Norbert Weimann, Manfred Dahm, Walter Schafer | 1989-11-21 |
| 4847152 | Microcapsules with improved polyurea walls | Gert Jabs, Hans-Joachim Scholl | 1989-07-11 |
| 4804687 | Foamed microbeads and a process for their preparation | Norbert Weimann, Manfred Dahm, Walter Schafer | 1989-02-14 |
| 4687853 | Imidazo[1,5-A]pyridylmethanes | Hans-Volker Runzheimer, Gert Jabs | 1987-08-18 |
| 4592957 | Microcapsules having walls of polyaddition products of water-insoluble polyamines with water-soluble polyisocyanate adducts | Manfred Dahm, Norbert Weimann, Hanns P. Muller, Gert Jabs, Albert Awater +1 more | 1986-06-03 |
| 4517141 | Production of microcapsules having walls of polyaddition products of water-insoluble polyamines with water-soluble polyisocyanate adducts | Manfred Dahm, Norbert Weimann, Hanns P. Muller, Gert Jabs, Albert Awater +1 more | 1985-05-14 |
| 4428983 | Process for the production of microcapsules | Manfred Hajek, Norbert Weimann, Manfred Dahm | 1984-01-31 |
| 4404251 | Copying systems, a process for their production, and suitable printing inks for both offset and book printing | Gert Jabs, Manfred Dahm, Artur Haus, Klaus Rath, Norbert Weimann | 1983-09-13 |