Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5614483 | Stabilized lubricant base material | Achim Fessenbecker, Hans-Jurgen Kress, Volker Müller | 1997-03-25 |
| 5552070 | Phosphorylation of epoxides | Volker Schafer, Robert Kohler, Gunter Schilling, Alfred Pauli, Ingo Rohrs | 1996-09-03 |
| 4982027 | Process for the reprocessing of carbon containing wastes | Axel Giehr, Karl-Heinz Keim, Kurt Erdt | 1991-01-01 |
| 4590306 | Process for the conversion of meta/para-cresol mixtures | Karl-Heinz Keim | 1986-05-20 |
| 4554388 | Process for isomerization and transalkylation of alkylphenols | Karl-Heinz Keim | 1985-11-19 |
| 4406824 | Catalysts for the o-substitution of phenols | Max Fremery, Karl-Heinz Keim | 1983-09-27 |
| 4405815 | Process for the production of acetaldehyde and ethanol | Karl-Heinz Keim | 1983-09-20 |
| 4400551 | Process for the production of acetaldehyde and ethanol | Karl-Heinz Keim | 1983-08-23 |
| 4400557 | Process for the o-substitution of phenols | Max Fremery | 1983-08-23 |
| 4359591 | Process for the o-substitution of phenols | Max Fremery, Karl-Heinz Keim | 1982-11-16 |
| 4278819 | Process for the production of acetaldehyde dimethyl acetal | Max Fremery, Johannes Zimmermann | 1981-07-14 |