Issued Patents All Time
Showing 1–25 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10995429 | Method for producing carbon fibers from cellulose fibers treated with sulfonic acid salts | Falko Abels, Martin Merger, Tomasz Cwik, Johanna Sporl, Frank Hermanutz +1 more | 2021-05-04 |
| 10618873 | Method for producing C4-C15 lactams | Richard Dehn, Ahmad Dehestani, Steffen WAGLÖHNER, Joaquim Henrique Teles, Thomas Schaub +4 more | 2020-04-14 |
| 9234137 | Flame retardant | Christoph Fleckenstein, Hartmut Denecke, Ingo Bellin, Olaf Kriha, Patrick Spies +5 more | 2016-01-12 |
| 9115312 | Flame retardant | Klaus Hahn, Sabine Fuchs, Ingo Bellin, Patrick Spies, Maximilian Hofmann +7 more | 2015-08-25 |
| 8952186 | Method for dehydrating a carbohydrate-comprising | Alois Kindler | 2015-02-10 |
| 8927737 | Process for purifying ionic liquids | Michael Siemer, Michael Klein, Sunghee Son, Uwe Vagt | 2015-01-06 |
| 8759411 | Derivatives of diphosphines as flame retardants for polyurethanes | Marco Balbo Block, Jens FERBITZ, Oliver Steffen Henze, Christoph Fleckenstein | 2014-06-24 |
| 8691896 | Halogen-free, phosphorus-containing flame-retardant polymer foams | Klaus Hahn, Olaf Kriha, Ingo Bellin, Patrick Spies, Sabine Fuchs +8 more | 2014-04-08 |
| 8562862 | Water absorbing material | Veit Stegmann, Franz Niklaus Windlin, Reinhold Schwalm, Dieter Hermeling, Thomas Daniel +1 more | 2013-10-22 |
| 8541612 | Unsaturated diphosphine monoxides | Alexander Tishkov | 2013-09-24 |
| 8519035 | Cyclic phosphines as flame retardants | Alexander Tishkov, Gunter Scherhag, Matthias Maase, Calvin Emanuel, Larry D. Timberlake +1 more | 2013-08-27 |
| 8486669 | Enzymatic hydrolysis of a cellulose material treated with an ionic liquid | Tim Balensiefer, Julia Brodersen, Giovanni D'Andola, Stephan Freyer, Veit Stegmann | 2013-07-16 |
| 8404149 | Absorbent article comprising water-absorbing material | Veit Stegmann, Franz Niklaus Windlin, Reinhold Schwalm, Dieter Hermeling, Thomas Daniel +1 more | 2013-03-26 |
| 8389740 | Process for preparing ionic liquids by anion exchange | Michael Siemer, Werner Mormann, Wei Leng | 2013-03-05 |
| 8382962 | Distillation of ionic liquids | Michael Siemer, Werner Mormann, Wei Leng | 2013-02-26 |
| 8252943 | Method for the production of compounds with quaternary sp2-hybridised nitrogen atoms | Laszlo Szarvas, Matthias Maase | 2012-08-28 |
| 8231792 | Purification of ionic liquids | Martin Fiene, Harald Rust, Veit Stegmann, Oliver Huttenloch, Jorg Heilek | 2012-07-31 |
| 8163951 | Method for producing quaternary ammonium compounds | Laszlo Szarvas, Matthias Maase, Alfred Oftring | 2012-04-24 |
| 8163215 | Method of forming regenerated carbohydrates with solvent systems based on molten ionic liquids | Veit Stegmann, Matthias Maase, Eric Uerdingen, Michael Lutz, Frank Hermanutz +1 more | 2012-04-24 |
| 8044120 | Ionic liquids for solubilizing polymers | Giovanni D'Andola, Laszlo Szarvas, Veit Stegmann | 2011-10-25 |
| 7858802 | Method of preparing ionic liquids | Matthias Maase, Laszlo Szarvas | 2010-12-28 |
| 7767852 | Method for the separation of acids from chemical reaction mixtures by means of ionic fluids | Martin Volland, Verena Seitz, Matthias Maase, Miguel Flores, Rainer Papp +7 more | 2010-08-03 |
| 7754822 | Method for the secondary crosslinking of hydrogels with bicyclic amide acetals | Thomas Daniel, Ulrich Riegel, Mark Elliott, Ubbo von Oehsen, Kai Michael Exner | 2010-07-13 |
| 7626058 | Processes for producing ethylene amines | Gunther van Cauwenberge, Johann-Peter Melder, Kirsten Dahmen, Steffen Oehlenschlaeger, Kai Michael Exner | 2009-12-01 |
| 7622617 | Method for producing α-bisabolol from farnesol | Klaus-Peter Pfaff, Juergen Schubert, Guenther Gottwald | 2009-11-24 |