Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798914 | Process for the production of vinyl chloride through thermal cracking of 1,2-dichloroethane | Gerhard Link, Walter Frohlich, Reinhard Krumbock, Georg Prantl | 1989-01-17 |
| 4747914 | Process for the purification of 1,2-dichloroethane | Peter Schwarzmaier, Walter Frohlich, Wenzel Kuhn, Josef Riedl, Erich Mittermaier +1 more | 1988-05-31 |
| 4349417 | Process for the manufacture of extremely pure monoethylene glycol | Siegfried Rebsdat, Sigmund Mayer, Josef Alfranseder | 1982-09-14 |
| 4335014 | Process for improving the activity of supported silver catalysts | Josef Alfranseder, Sigmund Mayer, Siegfried Rebsdat, Josef Riedl | 1982-06-15 |