Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11168273 | Polycarboxylic acid-based additives for fuels and lubricants | Harald Böhnke, Wolfgang Grabarse, Ludwig Völkel, Markus Hansch, Günter Oetter +3 more | 2021-11-09 |
| 11111449 | Use of nitrogen compounds quaternised with alkylene oxide and hydrocarbyl-substituted polycarboxylic acid as additives in fuels and lubricants | Markus Hansch, Harald Boehnke, Wolfgang Grabarse, Ludwig Voelkel | 2021-09-07 |
| 11085001 | Copolymers as additives for fuels and lubricants | Ivette Garcia Castro, Jochen Mezger, Klaus Muehlbach | 2021-08-10 |
| 10947467 | Polymers as additives for fuels | Ivette Garcia Castro, Aaron Flores-Figueroa | 2021-03-16 |