Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5281749 | Process for reducing the residual content of free alkylating agent in aqeous solutions of amphoteric or zwitterionic surfactants | Guenter Uphues, Uwe Ploog, Klaudia Bischof, Pavel Sladek | 1994-01-25 |