Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4360682 | Stabilizing caprolactones with dihydroxybenzenes | Herbert Klenk, Helmut Waldmann, Hermann Seifert | 1982-11-23 |
| RE30945 | Process for the preparation of propylene oxide | Guter Prescher, Gerd Schreyer, Otto Weiberg, Helmut Waldmann, Hermann Seifert +2 more | 1982-05-25 |
| 4313879 | Process for the manufacture of very pure .epsilon.-caprolactone | Herbert Klenk, Gerd Siekmann, Wulf Schwerdtel | 1982-02-02 |