Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871375 | Fuels for Otto engines | Franz-Dieter Martischius, Hans-Henning Vogel | 1989-10-03 |
| 4844714 | Fuels containing small amounts of alkoxylates and polycarboximides | Hans-Henning Vogel, Hans Peter Rath, Charalampos Gousetis | 1989-07-04 |
| 4827008 | Preparation of alkoxysilanes containing a low level of chlorine compounds | Charalampos Gousetis, Gert Liebold, Guenter Frey | 1989-05-02 |
| 4814394 | Polyethers obtainable by reacting alkylolated bis-(4-hydroxyphenyl)-methanes with polyalkylene oxides, and their use as oil demulsifiers | Klaus Barthold, Juergen Lasowski, Richard Baur | 1989-03-21 |
| 4810404 | Nitrite- and phosphate-free glycol-based coolant mixtures | Charalampos Gousetis, Gert Liebold, Guenter Frey | 1989-03-07 |