Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877885 | Novel 3-sulfinatomethyl-or 3-sulfonatomethyl-4-sulfomethyl pyrrolidinium betaines and their salts as well as process for making the same | Detlef Ballschuh, Horst Seibt, Roland Ohme, Egon Gruendemann, Elke Krause | 1989-10-31 |
| 4687602 | Novel 2-substituted 3-sulfopropyl-ammonium betaines and processes for making same | Detlef Ballschuh, Horst Seibt, Roland Ohme | 1987-08-18 |
| 4410709 | Sulfobetaines | Roland Ohme, Detlef Ballschuh, Horst Seibt, Kristina Geneis, Gunter Kretzschmar | 1983-10-18 |
| 4381980 | Process for the manufacture of sulfobetaines | Detlef Ballschuh, Roland Ohme, Horst Seibt, Kristina Geneis, Kurt Schaurich | 1983-05-03 |