Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6153174 | Cosmetic compositions comprising a combination of UV absorbers | Karin Sperling, Thomas Wunsch, Horst Westenfelder | 2000-11-28 |
| 5935563 | Substituted benzylidenecyanoacetic acid esters | — | 1999-08-10 |
| 5679863 | Preparation of carbonylphosphine oxides | Martin Fischer, Eckhard Hickmann, Rudolf Kropp, Jochen Schroeder | 1997-10-21 |
| 5504236 | Preparation of .alpha.-carbonylphosphine oxides | Martin Fischer, Eckhard Hickmann, Rudolf Kropp, Jochen Schroeder | 1996-04-02 |