Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4621072 | Process for preparing abrasion-resistant coated catalysts | Dietrich Arntz, Gunter Prescher, Werner Burkhardt, Reinhard Manner | 1986-11-04 |
| 4539409 | Process for preparing aromatic nitriles | Dietrich Arntz, Gunter Prescher, Werner Burkhardt, Reinhard Manner | 1985-09-03 |
| 4521618 | Process for preparing acrylic or methacrylic acid | Dietrich Arntz, Gunter Prescher, Werner Burkhardt, Reinhard Manner | 1985-06-04 |
| 4447612 | Catalysts for the production of 3-cyanopyridine | Helmut Beschke, Heinz Friedrich | 1984-05-08 |
| 4442308 | Process for preparing by catalytic oxidation in oxygen-containing gas mixtures, acrolein from propylene and methacrolein from isobutylene or tertiary butanol | Dietrich Arntz, Gunter Prescher | 1984-04-10 |