Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5676838 | Process for isolating hydroxymonocarboxylic and tricarboxylic acids | Elfriede Sextl, Akos Kiss, Wiltrud Schaefer-Treffenfeldt, Sems Yonsel, Stefan Stockhammer | 1997-10-14 |