Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5030771 | Method of producing aliphatic and cycloaliphatic diols by catalytic hydrogenation of dicarboxylic acid esters | Gunther Bub, Manfred zur Hausen | 1991-07-09 |
| 4855458 | Manufacture of phthalic anhydride by gas phase oxidation of a mixture of o-xylol and naphthalene | Manfred zur Hausen, Wilfried Krix | 1989-08-08 |