Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889950 | Preparation of carboxylic esters | Horst Hartmann, Josef Guth | 1989-12-26 |
| 4863641 | Preparation of acyl halides | Erika Irnich | 1989-09-05 |
| 4861742 | Bifunctional alkali metal compounds, preparation and use thereof as polymerization initiators | Klaus Bronstert, Siegbert Bohnet, Walter Himmele | 1989-08-29 |