Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844744 | Liquid, phosphate-free single phase degreasing compositions | Dieter Brodalla, Harald Wennemann, Frantisek Jost, Andreas Buhl | 1989-07-04 |
| 4837595 | Process and device for photographing microscopic objects | Herbert Koch, Andreas Hund, Guenter Reinheimer | 1989-06-06 |
| 4820436 | Detergents for low laundering temperatures | Hans Andree, Horst Baumann, Manfred Biermann, Frantisek Jost, Horst-Juergen Krause +9 more | 1989-04-11 |
| 4814814 | Process and device for the introduction, visualization and/or recording of a variable metering spot into a ray path of a camera for optical instruments | — | 1989-03-21 |