Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672721 | Preparation of low-solvent alkyl diketenes | Roland Ettl, Matthias Fankhänel, Wolfgang Reuther | 1997-09-30 |
| 5663435 | Reaction products of aminoalkylenecarboxylic acids and mineral oil middle distillates which contain them | Gabriele Dralle-Voss, Knut Oppenlander, Klaus Barthold, Bernd Wenderoth | 1997-09-02 |