Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9586906 | Method of working up mixtures comprising imidazolium salts | Michael Siemer, Ingo Richter | 2017-03-07 |
| 8519035 | Cyclic phosphines as flame retardants | Alexander Tishkov, Gunter Scherhag, Klemens Massonne, Calvin Emanuel, Larry D. Timberlake +1 more | 2013-08-27 |
| 8252943 | Method for the production of compounds with quaternary sp2-hybridised nitrogen atoms | Laszlo Szarvas, Klemens Massonne | 2012-08-28 |
| 8247517 | Catalyst for curing epoxides | Lars Wittenbecher, Michael Henningsen, Georg Degen, Manfred Doering, Ulrich Arnold | 2012-08-21 |
| 8202580 | Catalyst for curing epoxides | Lars Wittenbecher, Georg Degen, Michael Henningsen, Manfred Doering, Ulrich Arnold | 2012-06-19 |
| 8193297 | Catalyst for curing epoxides | Lars Wittenbecher, Georg Degen, Michael Henningsen, Manfred Doering, Ulrich Arnold | 2012-06-05 |
| 8163215 | Method of forming regenerated carbohydrates with solvent systems based on molten ionic liquids | Veit Stegmann, Klemens Massonne, Eric Uerdingen, Michael Lutz, Frank Hermanutz +1 more | 2012-04-24 |
| 8163951 | Method for producing quaternary ammonium compounds | Laszlo Szarvas, Klemens Massonne, Alfred Oftring | 2012-04-24 |
| 8053546 | Catalyst for curing epoxides | Georg Degen, Lars Wittenbecher, Manfred Döring, Ulrich Arnold | 2011-11-08 |
| 7858802 | Method of preparing ionic liquids | Klemens Massonne, Laszlo Szarvas | 2010-12-28 |
| 7776109 | Method for producing acylphosphine oxide solids | Gerhard Bertlein, Karl Heinz Schall, Joerg Heilek, Dieter Baumann, Hermann Ascherl | 2010-08-17 |
| 7767852 | Method for the separation of acids from chemical reaction mixtures by means of ionic fluids | Martin Volland, Verena Seitz, Miguel Flores, Rainer Papp, Klemens Massonne +7 more | 2010-08-03 |
| 7754053 | Distillation of ionic liquids | — | 2010-07-13 |
| 7754002 | Solubility of cellulose in ionic liquids with addition of amino bases | Veit Stegmann | 2010-07-13 |
| 7749318 | Cellulose solutions in ionic liquids | Veit Stegmann | 2010-07-06 |
| 7605297 | Method for extracting impurities using ionic liquids | Manuel Budich, Georg Groβmann, Laszlo Szarvas | 2009-10-20 |
| 7511084 | Acyl- and bisacylphosphine derivatives | Ralf Noe, Andreas Henne | 2009-03-31 |
| 7501522 | Method for the production of purified 1,3-substituted imidazolium salts | Klemens Massonne | 2009-03-10 |
| 7495130 | Method for producing substituted arylcarboxylic acid chlorides | Gerhard Bertlein, Holger Ganz, Matthias Dust | 2009-02-24 |
| 7368604 | Method for the production of acylphosphine oxides | Klemens Massonne | 2008-05-06 |
| 7351339 | Method for the separation of acids from chemical reaction mixtures by means of ionic fluids | Klemens Massonne, Klaus Halbritter, Ralf Noe, Michael Bartsch, Wolfgang Siegel +4 more | 2008-04-01 |
| 7084298 | Method for producing n-phosphonomethyl iminodiacetic acid | Michael Drogemuller | 2006-08-01 |