Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855084 | Anthraquinoylcarboxylic acid hydrazides, curable compositions and use thereof | Jurgen Finter, Walter Fischer, Visvanathan Ramanathan | 1989-08-08 |
| 4847359 | Diamino-9,10-dihydroanthracenes and polyamide acid (esters) and polyimides derived therefrom | Josef Pfeifer | 1989-07-11 |
| 4826965 | Metal complexes containing optically active sugar ligands, a process for their preparation and their use as chiral reactants for synthesis of alcohols and amines | Martin Riediker, Robert W. Lang, Peter Herold, Konrad Oertle, Guido Bold | 1989-05-02 |