Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879057 | Aqueous bleaching agent suspensions containing peroxycarboxylic acid, method for their preparation and use | Manfred Dankowski, Thomas Lieser, Wolfgang Leonhardt, Manfred Diehl | 1989-11-07 |
| 4825011 | Method of preparing substituted dihydroxy-benzenes | Karl-Heinz Drauz, Axel Kleeman, Gebhard Ritter | 1989-04-25 |