Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6166126 | Binder solutions for printing inks containing aromatic polymers with high softening points | Norbert Volkmann, Robert Zellerhoff | 2000-12-26 |
| 6107527 | Process for the production of hydroxy-aromatic substances | Zbigniew Stec, Jan Zawadiak, Robert Zellerhoff, Danuta Gilner, Beata Orlinska +3 more | 2000-08-22 |
| 5990357 | Process for the oxidation of isoalkylaromatic hydrocarbons, and catalyst for the execution of the process | Jan Zawadiak, Zbigniew Stec, Robert Zellerhoff, Danuta Gilner, Beata Orlinska +1 more | 1999-11-23 |
| 4490552 | Preparation of aryl esters by decomposing an aryl thallium carboxylate | — | 1984-12-25 |
| 4477380 | Oxidation process of reactive aromatics with reactivation of the catalyst using potassium permanganate | Bertram Bohmer, Roland Herzberg | 1984-10-16 |
| 4385002 | Monoaryl thallium III perchlorates and their preparation | — | 1983-05-24 |