Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5047556 | Photoinitiators having a combined structure | Jorg Ohngemach | 1991-09-10 |
| 5045573 | Photoinitiators for photopolymerization of unsaturated systems | Jorg Ohngemach, Gregor Wehner, Jurgen Gehlhaus | 1991-09-03 |
| 4922004 | Copolymerizable photoinitiators | Jorg Ohngemach, Eike Poetsch | 1990-05-01 |
| 4914004 | Two-layer system | Eike Poetsch, Jorg Ohngemach, Dieter Dorsch, Rudolf Eidenschink, Gerhard Greber | 1990-04-03 |
| 4861916 | Photoinitiators for photopolymerization of unsaturated systems | Jorg Ohngemach, Gregor Wehner, Jurgen Gehlhaus | 1989-08-29 |
| 4740624 | Process for the preparation of ketones | Michael C. Romer, Claus P. Herz | 1988-04-26 |
| 4524874 | Tower crane with overbooming protection | Klaas E. ten Broeke | 1985-06-25 |
| 4205826 | Lifting and supporting apparatus for a tower crane | Klaas E. ten Broeke | 1980-06-03 |