Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8653289 | Partial esters of a polyglycerol with at least one carboxylic acid and one polyfunctional carboxylic acid, their preparation and use | Hans Henning Wenk, Juergen Meyer, Hannelore Foetsch | 2014-02-18 |
| 8420137 | Bioactive composition for cosmetic applications | Hans Henning Wenk, Mike Farwick, Ursula Maczkiewitz | 2013-04-16 |
| 7847123 | Antimicrobial compositions | Hans Henning Wenk, Petra Allef, Mike Farwick, Burghard Gruning | 2010-12-07 |
| 5654457 | Method for synthesizing alkyl tin fluorides | Dieter Guhl, Sven-Uwe Vallerien | 1997-08-05 |