Issued Patents All Time
Showing 76–100 of 123 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6153786 | Method for producing 2-alkynoic acid esters | Thomas Preiss, Arnd Bottcher, Rolf Gleiter, Christel de Backer | 2000-11-28 |
| 6130360 | Hydrogenation of alkinols using a catalyst containing macropores | Arnd Bottcher, Melanie Brunner, Heinz Rutter | 2000-10-10 |
| 6107487 | Methine and azamethine dyes based on 5-membered heterocycles with a trifluoromethyl group | Rainer Blum, Peter Keller, Thomas Preiss | 2000-08-22 |
| 5962700 | Butyrolactone-preparation process | Marc Heider, Thomas Ruhl, Susanne Stutz, Thomas Preiss, Heinz Rutter +2 more | 1999-10-05 |
| 5942645 | Hydrogenation of aromatic compounds in which at least one hydroxyl group is bonded to an aromatic ring | Heinz Rutter, Thomas Ruhl, Boris Breitscheidel, Thomas Wettling | 1999-08-24 |
| 5936126 | Process for reacting an organic compound in the presence of a supported ruthenium catalyst | Thomas Ruhl, Boris Breitscheidel, Wolfgang Reif, Helmuth Menig, Sabine Weiguny | 1999-08-10 |
| 5929260 | Hydrogenation using magnetic catalysts | Claudius Kormann, Thomas Wettling, Ekkehard Schwab | 1999-07-27 |
| 5902916 | Process for reacting an organic compound in the presence of a ruthenium catalyst formed in situ | Thomas Ruhl, Boris Breitscheidel, Franz Josef Brocker, Wolfgang Reif, Karl Heinz Brauch +1 more | 1999-05-11 |
| 5874622 | Hydrogenation of an aromatic compound in the presence of a supported catalyst | Boris Breitscheidel, Thomas Ruhl, Klemens Flick, Andreas Henne, Rolf Lebkucher | 1999-02-23 |
| 5840986 | Preparation with heterogeneous catalysis of N-alkyl-substituted aminoalkynes | Thomas Preiss, Joachim Wulff-Doring, Susanne Stutz | 1998-11-24 |
| 5831129 | Preparation, with heterogeneous catalysis, of N-hydroxyalkyl-substituted aminoalkynes | Thomas Preiss, Joachim Wulff-Doring, Susanne Stutz, Thomas Ruhl | 1998-11-03 |
| 5808160 | Preparation of hydroxy-alkyl-substituted aminoalkynes with heterogenous catalysis | Thomas Ruhl, Thomas Preiss | 1998-09-15 |
| 5783697 | Preparation of vinyl carbamates | Marc Heider, Michael Karcher, Thomas Ruhl | 1998-07-21 |
| 5783706 | Process for the preparation of 1,3-disubstituted imidazolidinones | Thomas Ruhl | 1998-07-21 |
| 5773657 | Hydrogenation of aromatic compounds in which at least one amino group is bonded to an aromatic nucleus | Heinz Rutter, Thomas Ruhl, Boris Breitscheidel, Andreas Henne, Thomas Wettling | 1998-06-30 |
| 5739398 | Preparation of N-alkenylureas | Marc Heider, Thomas Ruhl | 1998-04-14 |
| 5723678 | Preparation of acetylenic compounds | Thomas Ruhl, Marc Heider, Peter Hofmann | 1998-03-03 |
| 5723685 | Preparation of monovinyl ethers | Marc Heider, Thomas Ruhl, Herbert Helfert, Martin Schmidt-Radde | 1998-03-03 |
| 5710331 | Preparation of N-alkenyl carboxamides | Marc Heider, Thomas Ruhl | 1998-01-20 |
| 5696223 | Copolymerizable oxime ethers | Michael Karcher, Marc Heider, Thomas Ruhl | 1997-12-09 |
| 5689017 | Preparation of a monolithium acetylide/ammonia complex | Thomas Ruhl, Rolf Muller, Marc Heider | 1997-11-18 |
| 5654478 | Preparation of N-alkenylcarboxamides | Thomas Ruhl, Marc Heider, Bernd FIECHTER | 1997-08-05 |
| 5646293 | Preparation of N-alkenylazoles | Marc Heider, Thomas Ruhl | 1997-07-08 |
| 5641881 | Preparation of N-alkenylcarboxamides | Thomas Ruhl, Marc Heider | 1997-06-24 |
| 5639890 | Preparation of N-akenylcarbamic esters | Marc Heider, Thomas Ruhl | 1997-06-17 |