Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7501539 | Process for the preparation of alkylidenecyclopentanone derivatives | Christian Chapuis | 2009-03-10 |
| 5992137 | Supporting disc for a supporting disc bearing of open-end spinning rotors and process of making same | — | 1999-11-30 |
| 5739374 | Processes of preparing diphenylheteroalkyl derivatives | Bernd Janssen | 1998-04-14 |
| 5656619 | Diphenylheteroalkyl derivatives, the preparation thereof and drugs and cosmetics prepared therefrom | Bernd Janssen | 1997-08-12 |
| 5527945 | Diphenylheteroalkyl derivatives, the preparation thereof and drugs and cosmetics prepared therefrom | Bernd Janssen | 1996-06-18 |
| 5475017 | Diaryl-substituted heterocyclic compounds, drugs and cosmetics obtained therefrom | Bernd Janssen, William V. Murray, Michael P. Wachter, Stanley C. Bell | 1995-12-12 |
| 5338749 | Diaryl-substituted heterocyclic compounds, their preparation and drigs and cosmetics obtained therefrom | Bernd Janssen, William V. Murray, Michael P. Wachter, Stanley C. Bell | 1994-08-16 |
| 5326900 | Aromatic keto compounds, the preparation thereof, and drugs and cosmetics containing these | Bernd Janssen | 1994-07-05 |
| 5256694 | Diarylacetylenes, their preparation and their use | Fritz-Frieder Frickel, Axel Nuerrenbach | 1993-10-26 |
| 5248823 | Diphenylheteroalkyl derivatives, the preparation thereof and drugs and cosmetics prepared therefrom | Bernd Janssen | 1993-09-28 |
| 5225601 | Diphenylheteroalkyl derivatives, the preparation thereof and drugs and cosmetics prepared therefrom | Bernd Janssen | 1993-07-06 |
| 5206242 | Diaryl-substituted pyrazole compounds and drugs and cosmetics obtained therefrom | Bernd Janssen, William V. Murray, Michael P. Wachter, Stanley C. Bell | 1993-04-27 |
| 5196532 | Diaryl-substituted heterocyclic compounds, their preparation and drugs and cosmetics obtained therefrom | Bernd Janssen, William V. Murray, Michael P. Wachter, Stanley C. Bell | 1993-03-23 |
| 5194664 | Aromatic keto compounds, the preparation thereof, and drugs and cosmetics containing these | Bernd Janssen | 1993-03-16 |
| 5128479 | Oxidized diphenylheteroalkanes | Bernd Janssen | 1992-07-07 |
| 5126371 | Diarylacetylenes, their preparation and their use | Fritz-Frieder Frickel, Axel Nuerrenbach | 1992-06-30 |
| 5087637 | Diarylacetylenes, the preparation and use thereof | Bernd Janssen | 1992-02-11 |
| 5087743 | Diphenylheteroalkyl derivatives, the preparation thereof and drugs and cosmetics prepared therefrom | Bernd Janssen | 1992-02-11 |
| 5072042 | Phenylhydrazones, the manufacture thereof and therapeutic and cosmetic compositions prepared therefrom | Bernd Janssen, William V. Murray, Michael P. Wachter, Stanley C. Bell | 1991-12-10 |
| 5061705 | Diaryl-substituted heterocyclic compounds, drugs and cosmetics obtained therefrom | Bernd Janssen, William V. Murray, Michael P. Wachter, Stanley C. Bell | 1991-10-29 |
| 5041648 | Phenylhydrazones of .beta.-ionone | Bernd Janssen | 1991-08-20 |
| 4994489 | Ester derivatives of diarylacetylenes, their compositions and their use in acne treatment | Fritz-Frieder Frickel, Axel Nuerrenbach | 1991-02-19 |
| 4918212 | Arylphosphorus derivatives | Bernd Janssen | 1990-04-17 |
| 4806558 | Diarylacetylenes and their use in treating acne | Fritz-Frieder Frickel, Axel Nuerrenbach | 1989-02-21 |
| 4804670 | Substituted hexatriene derivatives and their use in treating acne and psoriasis | Fritz-Frieder Frickel, Joachim Paust, Klaus Schmieder, Axel Nuerrenbach | 1989-02-14 |