Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4412959 | Process for the production of microcapsules | Christian Wegner, Manfred Dahm | 1983-11-01 |
| 4404251 | Copying systems, a process for their production, and suitable printing inks for both offset and book printing | Manfred Dahm, Artur Haus, Ulrich Nehen, Klaus Rath, Norbert Weimann | 1983-09-13 |
| 4324716 | Solutions of polyisocyanate polyaddition products | Artur Reischl | 1982-04-13 |
| 4324817 | Process for making carbonless copying paper | Manfred Dahm, Christian Wegner | 1982-04-13 |
| 4299723 | Microcapsules and their preparation | Manfred Dahm, Bernd Koglin, Hildegard Schnoring, Kurt Riecke | 1981-11-10 |