Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7341659 | Rinsing liquid treatment device | Franz Wenzl, Peter Ostermeier | 2008-03-11 |
| 7102019 | Cosmetic and pharmaceutical preparations comprising ascorbic acid derivatives | Bernd Ostersehlt, Horst Westenfelder | 2006-09-05 |
| 6887372 | Portable drilling water filter with self-cleaning system | Franz Wenzl, Peter Ostermeier | 2005-05-03 |
| 6461482 | Process for preparing high-purity phytantriol | Wolfram Burst, Jürgen Däuwel, Jürgen Koppenhöfer | 2002-10-08 |
| 6346254 | Cosmetic and pharmaceutical preparations comprising ascorbic acid derivatives | Bernd Ostersehlt, Horst Westenfelder | 2002-02-12 |
| 6183794 | Propionic acid, ammonia, propanediol and water solutions and the use thereof | Bruno Kaesler, Hans Muschen, Wolfgang Samson | 2001-02-06 |
| 6143906 | Ascorbyl sorbates | Linda von dem Bussche-Hunnefeld, Horst Westenfelder, Hans-Ulrich Wekel | 2000-11-07 |
| 5962701 | Chromanylascorbic acid derivatives their preparation and use | Thomas Rosenau, Wolf-Dieter Habicher | 1999-10-05 |