Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5101046 | 3-chloromethylsulfonylmethyl-4-sulfomethyl-pyrrolidinium-betaines and process for their preparation | Detlef Ballschuh, Roland Ohme, Horst Seibt | 1992-03-31 |
| 5101047 | Sulfobetaine-substituted .alpha.-sulfonylcarboxylic acids from diallylammonium salts and a process for the preparation thereof | Detlef Ballschuh, Roland Ohme, Horst Seibt | 1992-03-31 |
| 5099043 | 3-methylsulfonylmethyl-4-sulfomethyl-pyrrolidinium-betaines and process for their preparation | Detlef Ballschuh, Roland Ohme, Horst Seibt | 1992-03-24 |