Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7993439 | Printing ink concentrate and method for its production | Olaf Kaeppler, Volker Kittlaus, Manuela Mittermeier | 2011-08-09 |
| 4308408 | Process for the hydroxylation of styrene and styrene derivatives | Gerhard Kabisch, Horst Malitius, Siegfried Raupach, Rudolf Trube | 1981-12-29 |