Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7102034 | Process for preparing sulfonated arylphosphines | Michael Riedel, Ernst Wiebus, Carl D. Frohning, Wilfried Fenske, Florian Rampf +8 more | 2006-09-05 |
| 6864387 | Process for preparing sulfonated arylphosphines | Michael Riedel, Ernst Wiebus, Carl D. Frohning, Wilfried Fenske, Florian Rampf +8 more | 2005-03-08 |
| 6610881 | Method for producing sulfonated aryl phosphines | Michael Riedel, Jurgen Herwig, Helmut Bahrmann, Klaus Bergrath, Wolfgang Zgorzel-Ski +4 more | 2003-08-26 |