Issued Patents All Time
Showing 51–75 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6355603 | Thermal conversion products comprised of maleic anhydride and oligoalkenes, derivatives of the thermal conversion products with amines or alcohols and the use thereof | Helmut Mach | 2002-03-12 |
| 6284716 | Copolymers and their reaction products with amines as fuel and lubricant additives | Wolfgang H. H. Gunther, Knut Oppenlander, Walter Denzinger, Heinrich Hartmann, Helmut Mach +1 more | 2001-09-04 |
| 6133209 | Polyolefins and their functionalized derivatives | Irene Trötsch-Schaller, Dietmar Posselt, Bernhard Geissler, Johann-Peter Melder, Joachim Rosch | 2000-10-17 |
| 6005144 | 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, Klaus Ebel, Wolfgang H. H. Gunther, Harald Schwahn | 1999-12-21 |
| 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, Klaus Ebel, Wolfgang H. H. Gunther, Harald Schwahn | 1999-11-09 |
| 5976202 | Reaction products of polyolefins with vinyl esters and their use as fuel and lubricant additives | Helmut Mach, Harald Schwahn, Hans-Joachim Muller, Wolfgang Reif, Thomas Ruhl | 1999-11-02 |
| 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, Klaus Ebel, Wolfgang H. H. Gunther, Harald Schwahn | 1999-10-26 |
| 5962604 | Process for preparing low molecular weight, highly reactive polyisobutylene | — | 1999-10-05 |
| 5945575 | Method of producing reactive halogen-free, polyisobutene | Christoph Sigwart, Eugen Gehrer, Ulrich Müller, Rolf Fischer | 1999-08-31 |
| 5910550 | Preparation of medium molecular weight, highly reactive polyisobutene | — | 1999-06-08 |
| 5883196 | Preparation of polyalkenylsuccinic acid derivatives and their use as fuel and lubricant additives | Helmut Mach | 1999-03-16 |
| 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, Klaus Ebel, Wolfgang H. H. Gunther, Harald Schwahn | 1999-03-09 |
| 5556932 | Chlorine-free, non-drying isobutene/diene copolymers and process for their preparation | Konrad Knoll, Helmut Mach | 1996-09-17 |
| 5408018 | Preparation of highly reactive polyisobutenes | — | 1995-04-18 |
| 5286823 | Preparation of highly reactive polyisobutenes | — | 1994-02-15 |
| 5194068 | Ester-containing fuel for gasoline engines and diesel engines | Juergen Mohr, Knut Oppenlaender, Roland Schwen, Juergen Thomas, Hans-Henning Vogel | 1993-03-16 |
| 5191044 | Preparation of polyisobutene | Herwig Hoffmann, Peter Reuter, Helmut Mach | 1993-03-02 |
| 5123932 | Motor fuel compositions containing alkoxylation products | Herwig Hoffmann, Volker Vogt, Hans Horler, Helmut Mach, Juergen Thomas | 1992-06-23 |
| 5112364 | Gasoline-engine fuels containing polyetheramines or polyetheramine derivatives | Helmut Mach, Knut Oppenlaender, Willibald Schoenleben, Hans-Henning Vogel | 1992-05-12 |
| 5004478 | Motor fuel for internal combustion engines | Hans-Henning Vogel, Claus P. Jakob, Knut Oppenlaender | 1991-04-02 |
| 4959077 | Fuels for gasoline engines | Franz-Dieter Martischius, Hans-Henning Vogel, Norbert Greif, Knut Oppenlaender, Walter Denzinger +1 more | 1990-09-25 |
| 4859210 | Motor fuel or lubricant composition containing polybutyl or polyisobutyl derivatives | Dieter Franz, Rudolf Kummer, Helmut Mach | 1989-08-22 |
| 4844714 | Fuels containing small amounts of alkoxylates and polycarboximides | Hans-Henning Vogel, Knut Oppenlaender, Charalampos Gousetis | 1989-07-04 |
| 4832702 | Polybutyl-and polyisobutylamines, their preparation, and fuel compositions containing these | Rudolf Kummer, Dieter Franz | 1989-05-23 |
| 4822945 | Preparation of decene oligomers and use thereof as lubricating oils | Klaus Bronstert, Helmut Mach, Hans-Michael Walter | 1989-04-18 |