Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4316993 | Process for the preparation of 4-phenoxy-phenols | Emmerich Paszthory, Karl G. Seifert, Vincenz Zimmermann | 1982-02-23 |
| 4309547 | Process for the preparation of phenoxypropionic acids and their alkali metal salts | Manfred Koch | 1982-01-05 |