Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11306161 | Preparation of isobutene homo- or copolymer derivatives | Klaus Muehlbach, Helmut Mach, Ulrich Eichenauer | 2022-04-19 |
| 10745496 | Preparation of isobutene homo- or copolymer derivatives | Klaus Muehlbach, Helmut Mach, Ulrich Eichenauer | 2020-08-18 |
| 10689326 | Quaternized ammonium salts of hydrocarbyl epoxides and use thereof as additives in fuels and lubricants | Markus Hansch, Harald Boehnke, Wolfgang Grabarse, Arno Lange, Ludwig Voelkel | 2020-06-23 |
| 10550346 | Quaternized nitrogen compounds and use thereof as additives in fuels and lubricants | Cornelia Roeger-Goepfert, Harald Boehnke, Wolfgang Grabarse, Markus Hansch, Ludwig Voelkel | 2020-02-04 |
| 10173963 | Quaternized ammonium salts of hydrocarbyl epoxides and use thereof as additives in fuels and lubricants | Markus Hansch, Harald Boehnke, Wolfgang Grabarse, Arno Lange, Ludwig Voelkel | 2019-01-08 |
| 10119085 | Quaternized nitrogen compounds and use thereof as additives in fuels and lubricants | Cornelia Roeger-Goepfert, Harald Boehnke, Wolfgang Grabarse, Markus Hansch, Ludwig Voelkel | 2018-11-06 |
| 9951285 | Quaternized nitrogen compounds and use thereof as additives in fuels and lubricants | Cornelia Roeger-Goepfert, Harald Boehnke, Wolfgang Grabarse, Markus Hansch, Ludwig Voelkel | 2018-04-24 |
| 9458262 | Process for preparing isobutene homopolymers or copolymers | Rainer Urban, Klaus Muehlbach, Thomas Wettling, Uwe Rachwalsky, Stefan Hirsch +2 more | 2016-10-04 |
| 9359570 | Polytetrahydrobenzoxazines and bistetrahydrobenzoxazines and use thereof as a fuel additive or lubricant additive | Arno Lange, Harald Boehnke, Wolfgang Grabarse, Markus Hansch, Ludwig Voelkel +1 more | 2016-06-07 |
| 8911516 | Quaternized copolymer | Wolfgang Grabarse, Christian Tock, Cornelia Roeger-Goepfert, Ludwig Voelkel, Harald Boehnke | 2014-12-16 |
| 8697820 | Process for preparing high-reactivity isobutene homo- or copolymers | Klaus Muehlbach, Thomas Wettling, Ulrich Eichenauer, Herbert Mayr | 2014-04-15 |
| 8637619 | Process for preparing high-reactivity isobutene homo- or copolymers | Klaus Muelbach, Matthias Kiefer, Sergei V. Kostjuk, Irina Vasilenko, Alexander Frolov | 2014-01-28 |
| 8349977 | Process for preparing high-reactivity isobutene homo- or copolymers | Klaus Muelbach, Matthias Kiefer, Sergei V. Kostjuk, Irina Vasilenko, Alexander Frolov | 2013-01-08 |