Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643494 | Process for the preparation of aromatic hydroxy carboxylic acids | Siegbert Rittner, Jorg Schmid, Thomas Wisser | 1997-07-01 |
HR
Hans-Martin Ruffer
Overall (1997): #144,624 of 185,788Top 80%
1
Patents 1997