Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6407030 | Method for producing catalysts for synthesizing maleic anhydride by means of gas phase oxidation | Dirk Groke, Joachim Lotz, Hans-Jurgen Eberle | 2002-06-18 |
| 6048987 | Process for producing coated catalysts for the synthesis of maleic anhydride by gas-phase oxidation | Dirk Groke, Christoph Ruedinger, Hans Eberle, Reinhard Jering | 2000-04-11 |
| 5087746 | Process for the production of high purity tartaric acid | Skippy H. Ramsey | 1992-02-11 |
| 4867901 | Improved process for reacting salts of D,L-tartaric and maleic acid in the production of ether carboxylate mixtures | Liou-Liang Horng | 1989-09-19 |