Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12091618 | Mixtures for improving or boosting the separation of water from fuels | Matthias Zorn | 2024-09-17 |
| 11912950 | Use of nitrogen compounds quaternised with alkylene oxide and hydrocarbyl-substituted polycarboxylic acid as additives in fuels and lubricants | Markus Hansch, Wolfgang Grabarse, Ludwig Voelkel, Maxim Peretolchin | 2024-02-27 |
| 11111449 | Use of nitrogen compounds quaternised with alkylene oxide and hydrocarbyl-substituted polycarboxylic acid as additives in fuels and lubricants | Markus Hansch, Wolfgang Grabarse, Ludwig Voelkel, Maxim Peretolchin | 2021-09-07 |
| 10858608 | Use of a hydrocarbyl-substituted dicarboxylic acid for improving or boosting the separation of water from fuel oils and gasoline fuels | Ludwig Voelkel, Marc Walter | 2020-12-08 |
| 10815444 | Use of specific derivatives of quaternized nitrogen compounds as additives in fuels and lubricants | Markus Hansch, Wolfgang Grabarse, Ludwig Voelkel, Maxim Peretolchin | 2020-10-27 |
| 10689326 | Quaternized ammonium salts of hydrocarbyl epoxides and use thereof as additives in fuels and lubricants | Markus Hansch, Wolfgang Grabarse, Hannah Maria Koenig, Arno Lange, Ludwig Voelkel | 2020-06-23 |
| 10676685 | Use of nitrogen compounds quaternised with alkylene oxide and hydrocarbyl-substituted polycarboxylic acid as additives in fuels and lubricants | Markus Hansch, Wolfgang Grabarse, Ludwig Voelkel, Maxim Peretolchin | 2020-06-09 |
| 10550346 | Quaternized nitrogen compounds and use thereof as additives in fuels and lubricants | Cornelia Roeger-Goepfert, Wolfgang Grabarse, Hannah Maria Koenig, Markus Hansch, Ludwig Voelkel | 2020-02-04 |
| 10407634 | Use of nitrogen compounds quaternised with alkylene oxide and hydrocarbyl-substituted polycarboxylic acid as additives in fuels and lubricants | Markus Hansch, Wolfgang Grabarse, Ludwig Voelkel, Maxim Peretolchin | 2019-09-10 |
| 10370610 | Use of specific derivatives of quaternized nitrogen compounds as additives in fuels and lubricants | Markus Hansch, Wolfgang Grabarse, Ludwig Voelkel, Maxim Peretolchin | 2019-08-06 |
| 10344241 | Acid-free quaternized nitrogen compounds and use thereof as additives in fuels and lubricants | Wolfgang Grabarse, Christian Tock, Cornelia Roeger-Goepfert, Ludwig Voelkel | 2019-07-09 |
| 10336957 | Acid-free quaternized nitrogen compounds and use thereof as additives in fuels and lubricants | Wolfgang Grabarse, Christian Tock, Cornelia Roeger-Goepfert, Ludwig Voelkel | 2019-07-02 |
| 10240100 | Corrosion inhibitors for fuels and lubricants | Jochen Mezger, Maxim Peretolchin, Aaron Flores-Figueroa, Markus Hansch, Ludwig Voelkel +2 more | 2019-03-26 |
| 10174269 | Use of a hydrocarbyl-substituted dicarboxylic acid for improving or boosting the separation of water from fuel oils and gasoline fuels | Ludwig Voelkel, Marc Walter | 2019-01-08 |
| 10173963 | Quaternized ammonium salts of hydrocarbyl epoxides and use thereof as additives in fuels and lubricants | Markus Hansch, Wolfgang Grabarse, Hannah Maria Koenig, Arno Lange, Ludwig Voelkel | 2019-01-08 |
| 10119085 | Quaternized nitrogen compounds and use thereof as additives in fuels and lubricants | Cornelia Roeger-Goepfert, Wolfgang Grabarse, Hannah Maria Koenig, Markus Hansch, Ludwig Voelkel | 2018-11-06 |
| 9988589 | Acid-free quaternized nitrogen compounds and use thereof as additives in fuels and lubricants | Wolfgang Grabarse, Christian Tock, Cornelia Roeger-Goepfert, Ludwig Voelkel | 2018-06-05 |
| 9951285 | Quaternized nitrogen compounds and use thereof as additives in fuels and lubricants | Cornelia Roeger-Goepfert, Wolfgang Grabarse, Hannah Maria Koenig, Markus Hansch, Ludwig Voelkel | 2018-04-24 |
| 9587194 | Acid-free quaternized nitrogen compounds and use thereof as additives in fuels and lubricants | Wolfgang Grabarse, Christian Tock, Cornelia Roeger-Goepfert, Ludwig Voelkel | 2017-03-07 |
| 9359570 | Polytetrahydrobenzoxazines and bistetrahydrobenzoxazines and use thereof as a fuel additive or lubricant additive | Arno Lange, Wolfgang Grabarse, Hannah Maria Koenig, Markus Hansch, Ludwig Voelkel +1 more | 2016-06-07 |
| 9255236 | Acid-free quaternized nitrogen compounds and use thereof as additives in fuels and lubricants | Wolfgang Grabarse, Christian Tock, Cornelia Roeger-Goepfert, Ludwig Voelkel | 2016-02-09 |
| 9062266 | Imidazolium salts as additives for fuels | Maxim Peretolchin, Ludwig Voelkel, Markus Hansch, Boris Gaspar, Christian Seitz | 2015-06-23 |
| 9039791 | Use of a reaction product of carboxylic acids with aliphatic polyamines for improving or boosting the separation of water from fuel oils | Maxim Peretolchin, Guenter Oetter, Markus Hansch, Ludwig Voelkel | 2015-05-26 |
| 8911516 | Quaternized copolymer | Wolfgang Grabarse, Hannah Maria Koenig, Christian Tock, Cornelia Roeger-Goepfert, Ludwig Voelkel | 2014-12-16 |
| 8790426 | Quaternized terpolymer | Ivette Garcia Castro, Cornelia Roeger-Goepfert, Wolfgang Grabarse, Klaus Muehlbach, Ludwig Voelkel +1 more | 2014-07-29 |