Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9064633 | Method for synthesizing quaternary ammonium systems | Alfred Siggel, Thirumalai G. Palanisamy, Andrew J. Poss, Sonja Demel | 2015-06-23 |
| 8426593 | Method for synthesizing quaternary ammonium systems | Alfred Siggel, Thirumalai G. Palanisamy, Andrew J. Poss, Sonja Demel | 2013-04-23 |
| 7601871 | Method for purifying quaternary onium salts | Alfred Siggel, Michael Fooken, Michael Theissen, Andreas Kanschik-Conradsen, Sonja Demel | 2009-10-13 |
| 7217814 | Methods of producing phosphitylated compounds | Christian Werner, Andreas Kanschik-Conradsen, Kalakota S. Reddy | 2007-05-15 |
| 6894158 | Methods of producing phosphitylated compounds | Christian Werner, Andreas Kanschik-Conradsen, Kalakota S. Reddy | 2005-05-17 |