Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6368577 | Nanoscale organic UV filters | Christian Kropf, Thomas Foerster, Bernd Fabry | 2002-04-09 |
| 6352737 | Use of nanoscale sterols and sterol esters | Christian Kropf, Peter Christophliemk, Bernd Fabry, Manfred Biermann, Christine Schroeder | 2002-03-05 |
| 5780420 | Silicate-based builders and their use in detergents and multicomponent mixtures for use in this field | Wolfgang Breuer, Volker Bauer, Joerg Poethkow, Beatrix Kottwitz, Jochen Jacobs +3 more | 1998-07-14 |
| 5215732 | Method for producing alkali metal silicates by heating cristobalite or tempered quartz sand with NaOH or KOH under atmospheric pressure | Johannes W. Hachgenei, Rudolf Novotny, Peter Christophliemk, Juergen Foell | 1993-06-01 |
| 4888120 | Water-based drilling and well-servicing fluids with swellable, synthetic layer silicates | Heinz Mueller, Claus-Peter Herold, Stephan van Tapavizca, Wolfgang von Rybinski, Winfried Wichelhaus | 1989-12-19 |