Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6489519 | Process for removal of impurities from phenol by means of at least one acid catalyst | Heinrich van Barneveld, Otto Gerlich, Wilfried Jordan, Hugo H. J. M. Liefooche | 2002-12-03 |