Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10815444 | Use of specific derivatives of quaternized nitrogen compounds as additives in fuels and lubricants | Markus Hansch, Harald Boehnke, Wolfgang Grabarse, Ludwig Voelkel | 2020-10-27 |
| 10676685 | 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 | 2020-06-09 |