Issued Patents All Time
Showing 26–50 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8378157 | Method for producing bis(fluoralkyl)phosphinic acid chlorides or fluoralkylphosphonic acid chlorides | Dana Bejan, Helge Willner, Emil Aust | 2013-02-19 |
| 8338507 | Use of phosphinic acids and/or phosphonic acids in polymerisation processes | Wolfgang Hierse | 2012-12-25 |
| 8211277 | Compounds containing organofluorochlorophosphate anions | German Bissky, Helge Willner | 2012-07-03 |
| 8148443 | Oxonium and sulfonium salts | German Bissky, Helge Willner | 2012-04-03 |
| 8106217 | Ionic liquids with bis[bis(pentafluoroalkyl)phosphinyl]imides | Urs Welz-Biermann, Michael Heckmeier, German Bissky, Helge Willner | 2012-01-31 |
| 8101749 | Process for the preparation of onium salts with a tetrafluoroborate anion having a reduced halide content | Urs Welz-Biermann, Andriy Kucheryna, Helge Willner | 2012-01-24 |
| 8084617 | Ionic liquids having fluoroalkyltrifluoroborate anions | Urs Welz-Biermann, German Bissky, Helge Willner, Andriy Kucheryna | 2011-12-27 |
| 7999111 | Process for the preparation of onium alkylsulfonates | Urs Welz-Biermann, Andriy Kucheryna, Helge Willner | 2011-08-16 |
| 7939644 | Cyanoborate, fluoroalkylphosphate, fluoroalkylborate or imide dyes | Urs Welz-Biermann, Helge Willner, Maik Finze, Eduard Bernhardt, Andriy Kucheryna | 2011-05-10 |
| 7842804 | Ionic salts comprising pyrrolidinium, triazolinium, piperidinium or morpholinium cations and alkyltrifluorophosphate anions | German Bissky, Helge Willner | 2010-11-30 |
| 7709656 | Ionic liquids containing guanidinium cations | Urs Welz-Biermann, Helge Willner, German Bissky | 2010-05-04 |
| 7692007 | Process for the preparation of onium salts having a low chloride content | Urs Welz-Biermann, Peter Barthen, Helge Willner | 2010-04-06 |
| 7652171 | Cleavage of dialkoxyalkanes in ionic liquids | Karsten Koppe, Hermann Josef Frohn, Peter Barthen | 2010-01-26 |
| 7645434 | Salts comprising cyanoborate anions | Urs Welz-Biermann, Eduard Bernhardt, Maik Finze, Helge Willner | 2010-01-12 |
| 7632969 | Process for the preparation of perfluoroalkylphosphines and the use thereof as perfluoroalkylating reagents | Urs Welz-Biermann, Michael Weiden, Michael Schmidt, Udo Heider, Alexej Miller +2 more | 2009-12-15 |
| 7585994 | Process for the preparation of compounds containing perfluoroalkanesulfonic acid groups | Michael Schmidt, Udo Heider, Peter Sartori, Andry Kucheryna | 2009-09-08 |
| 7541488 | Process for the preparation of mono- and bis(fluoroalkyl)phosphoranes and the corresponding acids and phosphates | Urs Welz-Biermann, Michael Schmidt, Andriy Kucheryna, Helge Willner | 2009-06-02 |
| 7439395 | Process for the preparation of guanidinium salts | Urs Welz-Biermann, German Bissky, Helge Willner | 2008-10-21 |
| 7208626 | Method for the production of perfluoroalkyl phosphines and the use thereof as perfluoroalkylating reactants | Urs Welz-Biermann, Michael Weiden, Michael Schmidt, Udo Heider, Alexej Miller +2 more | 2007-04-24 |
| 7202379 | Process for the preparation of bis(perfluoroalkyl)phosphinic acids and salts thereof | Urs Welz-Biermann, Michael Weiden, Udo Heider, Andri Kucheryna, Helge Willner +1 more | 2007-04-10 |
| 7153974 | Ionic liquids II | Michael Schmidt, Udo Heider, Winfried Geissler, Volker Hilarius | 2006-12-26 |
| 7145004 | Method for the production of monohydro-perfluoroalkanes, bis(perfluoroalkyl)phosphinates and perfluoroalkylphosphonates | Michael Weiden, Urs Welz-Biermann, Udo Heider, Peter Sartori, Andriy Kucheryna +1 more | 2006-12-05 |
| 7094328 | Strong acids, process for the preparation thereof, and uses thereof | Michael Schmidt, Andreas Kuhner, Volker Hilarius, Udo Heider, Andriy Kucheryna +2 more | 2006-08-22 |
| 7084290 | Method for producing perfluoroalkanesulfonic acid esters | Michael Schmidt, Udo Heider, Peter Sartori, Andry Kucheryna | 2006-08-01 |
| 6943263 | Method for producing bis(trifluoromethyl)imido salts | Udo Heider, Michael Schmidt, Peter Sartori, Andrij Kucherina, Ludmila Zinovyeva | 2005-09-13 |