Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10836658 | Liquid preparation for the reduction of free oxygen and the preservation of water | Ralf Gradtke, Wolfgang Beilfuss, Jennifer Knopf | 2020-11-17 |
| 10640714 | Use of compositions having a content of 3,3′-methylenebis(5-methyloxazolidine) in the removal of sulphur compounds from process streams | Wolfgang Beilfuss, Ralf Gradtke, Stefanie Krause, Jennifer Knopf, Joachim Thiede +1 more | 2020-05-05 |
| 6380391 | Process for the preparation of bis(4-amino-1-pyridinium) alkanes | Wolfgang Beilfuss, Ralf Gradtke | 2002-04-30 |