Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684188 | Continuous heterogeneously catalyzed gas-phase oxidation of propylene to acrolein, acrylic acid or a mixture thereof | Werner Hefner, Hans-Peter Neumann, Andreas Tenten, Wilhelm Ruppel, Herbert Vogel | 1997-11-04 |