Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6528683 | Method for producing shell catalysts for the catalytic vapor-phase oxidation of aromatic hydrocarbons and catalysts obtained in such a manner | Thomas Heidemann, Frank Rosowski, Gerd Linden, Michael Seufert, Peter Michael Lorz | 2003-03-04 |
| 6458970 | Method for producing acid phthalic anhydride and an appropriate shell catalyst containing titanium-vanadium-cesium | Otto Kratzer, Walter Scheidmeir, Bernhard Ulrich | 2002-10-01 |
| 6362345 | Method for producing phthalic anhydride by means of catalytic vapor-phase oxidation of o-xylol/naphthalene mixtures | Thomas Heidemann, Heiko Arnold, Herbert Wanjek | 2002-03-26 |