Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4473371 | Perfluoroalkyl esters, a process for their preparation and their use as a soil-repellant agent | Erich Schinzel | 1984-09-25 |
| 4377703 | Process for preparing benzoxanthene and benzothioxanthene dyestuffs | Hans-Gerd Elinkmann | 1983-03-22 |
| 4316993 | Process for the preparation of 4-phenoxy-phenols | Karl G. Seifert, Vincenz Zimmermann, Hans J. Nestler | 1982-02-23 |