Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9630955 | Chemical compound useful as intermediate for preparing a catechol-O-methyltransferase inhibitor | Domenico Russo, Laszlo Erno Kiss, Jorge Bruno Reis Wahnon, David Alexander Learmonth, Tibor Eszenyi +3 more | 2017-04-25 |
| 9126988 | Intermediate for preparing a catechol-O-methyltransferase inhibitor | Domenico Russo, Laszlo Erno Kiss, Jorge Bruno Reis Wahnon, David Alexander Learmonth, Tibor Eszenyi +3 more | 2015-09-08 |
| 7858381 | Process for preparing high-purity, halogen-free o-phthaladehyde | Karlheinz Giselbrecht, Rudolf Hermanseder | 2010-12-28 |
| 6545186 | Process for the purification of ketones obtained from the corresponding terpenes by ozonolysis and reduction | Karlheinz Giselbrecht, Josef Schaller, Rudolf Hermanseder | 2003-04-08 |
| 6518455 | Process for preparing substituted aromatic and heteroaromatic aldehydes and carboxylic acids | Gerhard Steinbauer, Karlheinz Giselbrecht, Manfred Schoftner | 2003-02-11 |
| 6395903 | Process for the preparation of 2,3-pyridinedicarboxylic acids | Karlheinz Giselbrecht, Eduard Perndorfer | 2002-05-28 |
| 5939580 | Process for preparing glyoxylic esters and their hydrates | Engelbert Kloimstein, Wolfram Hendel, Christian Burger, Antonia Praus, Karl-Heinz Giselbrecht +1 more | 1999-08-17 |
| 5874637 | Process for the purification of o-phthalaldehyde | Karl-Heinz Giselbrecht, Eduard Perndorfer, Rudolf Hermanseder | 1999-02-23 |
| 5202478 | Process for the preparation of alpha, omega-alkanedioic acids | Karl Schermanz, Manfred Schoftner, Engelbert Kloimstein, Josef Schaller, Eduard Perndorfer +1 more | 1993-04-13 |