Issued Patents All Time
Showing 76–100 of 112 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5980594 | Use of reaction products of polyolefins and oxides of nitrogen or mixtures of oxides of nitrogen and oxygen as additives for fuels | Rudolf Kropp, Eckhard Hickmann, Wolfgang H. H. Gunther, Hans Peter Rath, Harald Schwahn | 1999-11-09 |
| 5972856 | Reaction products of polyisobutenes and oxides of nitrogen or mixtures of oxides of nitrogen and oxygen and their use as fuel and lubricant additives | Rudolf Kropp, Eckhard Hickmann, Wolfgang H. H. Gunther, Hans Peter Rath, Harald Schwahn | 1999-10-26 |
| 5962596 | Polyformamides and polyamines | Hans-Joachim Hähnle | 1999-10-05 |
| 5879420 | Reaction products of polyisobutenes and oxides of nitrogen or mixtures of oxides of nitrogen and oxygen and their use as fuel and lubricant additives | Rudolf Kropp, Eckhard Hickmann, Wolfgang H. H. Gunther, Hans Peter Rath, Harald Schwahn | 1999-03-09 |
| 5877326 | Aqueous phase process for preparing N-substituted imidazoles | Gisela HIEBER, Jürgen Schröder, Toni Dockner, Carsten Groning, Bernd Ruge | 1999-03-02 |
| 5866732 | Preparation of alkyl bromides from aqueous hydrobromic acid and olefins | Matthias Eiermann | 1999-02-02 |
| 5840894 | Preparation of 1,2,4-triazolium salts and 1,2,4-triazolines | Regina Schneider, Johann-Peter Melder, Joaquim Henrique Teles, Carsten Groning | 1998-11-24 |
| 5831097 | Process for the preparation of acyloins | Regina Schneider, Johann-Peter Melder, Joaquim Henrique Teles | 1998-11-03 |
| 5801268 | Preparation of aliphatic alpha omega-aminonitriles | Klemens Flick, Johann-Peter Melder, Werner Schnurr, Tom Witzel, Wolfgang Harder +2 more | 1998-09-01 |
| 5801267 | Preparation of aliphatic alpha, omega-aminonitriles | Klemens Flick, Johann-Peter Melder, Werner Schnurr, Tom Witzel, Wolfgang Harder +2 more | 1998-09-01 |
| 5767325 | Preparation of enol ethers | Jürgen Schröder, Stefan Bock | 1998-06-16 |
| 5756808 | Preparation of aliphatic, alpha omega-aminonitriles | Klemens Flick, Johann-Peter Melder, Werner Schnurr, Tom Witzel, Wolfgang Harder +2 more | 1998-05-26 |
| 5698715 | Preparation of unsaturated cyclic ethers | Jurgen Schroeder, Thomas Fetzer, Christopher William Rieker | 1997-12-16 |
| 5659070 | Preparation of alkyl 5-oxo-6-heptenoates, and novel intermediate for the preparation thereof | Matthias Eiermann, Thomas Papkalla | 1997-08-19 |
| 5585496 | Catalytic preparation of condensation products of formaldehyde | Joaquim Henrique Teles, Johann-Peter Melder, Eugen Gehrer, Wolfgang Harder, Carsten Groening +1 more | 1996-12-17 |
| 5557004 | Process for production of aliphatic.alpha..omega.aminonitriles | Klemens Flick, Werner Schnurr, Johann-Peter Melder, Wolfgang Harder | 1996-09-17 |
| 5527946 | Preparation of aliphatic alpha, omega-aminonitriles | Klemens Flick, Johann-Peter Melder, Werner Schnurr, Tom Witzel, Wolfgang Harder +2 more | 1996-06-18 |
| 5508422 | Addition products of triazolium salts | Joaquim Henrique Teles, Johann-Peter Melder, Eugen Gehrer, Wolfgang Harder, Carsten Groening +1 more | 1996-04-16 |
| 5468871 | Preparation of N-substituted pyrazoles | Juergen Schroeder, Carsten Groening, Toni Dockner, Hans Rupert Merkle | 1995-11-21 |
| 5426235 | Preparation of cyclic ketones | Juergen Schroeder, Charles Schommer | 1995-06-20 |
| 5410089 | Preparation of dihydroxyacetone | Eugen Gehrer, Wolfgang Harder, Herbert Vogel, Bernhard Knuth, Carsten Groening | 1995-04-25 |
| 5399705 | 1,1'-bis(3-aminopropyl)-2,2'-diimidazole | Franz Merger, Martin Brudermueller | 1995-03-21 |
| 5387704 | Preparation of anthraquinones | Juergen Schroeder | 1995-02-07 |
| 5386062 | Catalytic preparation of condensation products of formaldehyde | Joaquim Henrique Teles, Johann-Peter Melder, Eugen Gehrer, Wolfgang Harder, Carsten Groening +1 more | 1995-01-31 |
| 5362875 | Preparation of pyrimidines | Juergen Schroeder | 1994-11-08 |