Issued Patents 1982
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362604 | Process for the preparation of pyrocatechol and hydroquinone | Christoph Jupe, Jurgen Baumert, Gunther Schummer | 1982-12-07 |
| 4360682 | Stabilizing caprolactones with dihydroxybenzenes | Herbert Klenk, Rolf Wirthwein, Hermann Seifert | 1982-11-23 |
| 4341709 | Preparation of .epsilon.-caprolactone | Willi Hofen, Herbert Klenk, Gerd Schreyer, Otto Weiberg, Hermann Seifert +2 more | 1982-07-27 |
| RE30945 | Process for the preparation of propylene oxide | Guter Prescher, Gerd Schreyer, Otto Weiberg, Rolf Wirthwein, Hermann Seifert +2 more | 1982-05-25 |
| 4324925 | Process for the preparation of polyhydric phenols | Christoph Jupe, Hermann Seifert | 1982-04-13 |
| 4321143 | Treating effluent with peroxide and iron | Klaus G. Wilms | 1982-03-23 |