Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889769 | Method of producing matte precious metal decorations | Marion Lotze | 1989-12-26 |
| 4874433 | Methods of preparing encapsulated pigments | Akos Kiss, Juergen Hanich, Guenter Halbritter, Jenny Horst | 1989-10-17 |
| 4861937 | Catalysts for converting alcohols and/or aliphatic ether to unsaturated hydrocarbons and process for their production | Michael Baacke, Klaus Deller, Edgar Koberstein | 1989-08-29 |
| 4855470 | Organosilanes containing benzoyl thiourea groups and method of preparation | Peter Panster, Horst Grethe | 1989-08-08 |
| 4851492 | Organopolysiloxanes containing acyl thiourea groups, methods of their preparation and use | Peter Panster, Karl-Heinz Koenig, Elske Schopenhauer-Gehrmann | 1989-07-25 |
| 4837322 | Mixtures of sulfurous triazine compounds | Ulrich Deschler, Georg Hellwig, Rudolf Michel, Siegfried Wolff | 1989-06-06 |
| 4835297 | Method of preparing sulfenic acid chlorides and sulfenic acid esters | Ulrich Deschler, Rudolf Michel, Siegfried Wolff | 1989-05-30 |
| 4806268 | Luminescing glasses | Akos Kiss, Werner Volker, Gunter Halbritter | 1989-02-21 |