Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4485249 | 2-Acylated dihydro-1,3-dioxepins, process for the production thereof and use thereof as photo-initiators | Hans-Dieter Scharf, Herbert Frauenrath, Hans-Georg Heine, Hans Rudolph, Otto Bendszus | 1984-11-27 |
| 4436570 | Process for bonding films | Horst Muller-Albrecht, Manfred Dollhausen, Hermann Perrey | 1984-03-13 |
| 4389472 | Process for the production of documents which cannot be falsified | Hans J. Rosenkranz, Hermann Perrey | 1983-06-21 |
| 4380604 | Radiation-hardenable acrylic acid esters containing urethane groups and their use | Hermann Perrey, Karl Fuhr, Hans-Joachim Freier, Otto Bendszus | 1983-04-19 |