Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4929784 | Process for the preparation of optionally substituted benzyl-benzenes | Michael Herzhoff, Gerhard Burmeister | 1990-05-29 |
| 4453020 | Process for purifying the methanol employed in the preparation of formaldehyde | Paul R. Wambach, deceased | 1984-06-05 |
| 4260827 | Process for the purification of aqueous solutions of low molecular weight polyhydroxyl compounds | Raimund Wambach | 1981-04-07 |