Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7211697 | Method for producing specific crystalline modifications of polmorphous substances | Axel Eble, Ulrich Schwiedop, Armin Heyn | 2007-05-01 |
| 7026307 | Method for producing 1,3-disubstituted 2-nitroguanidines | Jörn Stölting, Kai van Laak, Armin Heyn, Torsten Taschner | 2006-04-11 |
| 6720451 | Method for producing N-methyl-N′-nitroguanidine | Kai van Laak | 2004-04-13 |
| 6583312 | Process for preparing optically active trimethyllactic acid and its esters | Claus Dreisbach | 2003-06-24 |
| 6528651 | Method for production of 1,3-disubtituted 2-nitroguanidines | Kai van Laak, Detlef Wollweber | 2003-03-04 |
| 6489513 | Process for the preparation of enantiomerically pure (5, 5′-dichloro-6,6′-dimethoxy-biphenyl-2,2′-diyl)- bis(diphenylphosphine oxides) | Torsten Pohl, Thomas Prinz, Guido Giffels | 2002-12-03 |
| 5868938 | Chiral stationary phases for chromatographic separation of optical isomers | Bruno Bomer, by Guido Martin Bomer, Rolf Grosser, Walter Lange, Uwe Zweering +2 more | 1999-02-09 |
| 5739360 | Intermediates for the synthesis of bisphosphine compounds | Christian Laue, Dieter Arlt, Rolf Grosser | 1998-04-14 |