Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4618700 | Process for the preparation of a hydroxyphenylcarboxylate | Erich Gubler | 1986-10-21 |
| 4455436 | N-Acyl-o-phenylenediamines | Hans R. Meyer | 1984-06-19 |
| 4313846 | N-Acyl-o-phenylenediamines | Hans R. Meyer | 1982-02-02 |