Issued Patents All Time
Showing 76–94 of 94 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475250 | Multifunctional additive for fuel oils | Werner Reimann | 2002-11-05 |
| 6461393 | Mixtures of carboxylic acids, their derivatives and hydroxyl-containing polymers and their use for improving the lubricating effect of oils | Werner Reimann | 2002-10-08 |
| 6458174 | Copolymers, and their use as additives for improving the cold-flow properties of middle distillates | Waltraud Nagel | 2002-10-01 |
| 6391071 | Use of hydroxyl-containing copolymers for the preparation of fuel oils having improved lubricity | Markus Kupetz | 2002-05-21 |
| 6384170 | Hydroxyl-containing ethylene copolymers and fuel oils having an improved lubricating action | Markus Kupetz, Raimund Wildfang | 2002-05-07 |
| 6364918 | Hydroxyl-containing copolymers, and their use for the preparation of fuel oils having improved lubricity | Waltraud Nagel | 2002-04-02 |
| 6281292 | Mixtures of copolymers having an improved lubricating action | Werner Reimann, Markus Kupetz | 2001-08-28 |
| 6110238 | Process for improving the cold-flow properties of fuel oils | Werner Reimann | 2000-08-29 |
| 6090169 | Process for improving the cold-flow properties of fuel oils | Werner Reimann | 2000-07-18 |
| 6010989 | Additive for improving the flow properties of mineral oils and mineral oil distillates | Werner Reimann | 2000-01-04 |
| 5998530 | Flowability of mineral oils and mineral oil distillates using alkylphenol-aldehyde resins | Michael Feustel, Werner Reimann, Ulrike Tepper | 1999-12-07 |
| 5789510 | Terpolymers of ethylene, their preparation and their use as additives for mineral oil distillates | Werner Reimann | 1998-08-04 |
| 5767190 | Terpolymers of ethylene, their preparation and their use as additives for mineral oil distillates | Werner Reimann | 1998-06-16 |
| 5718821 | Copolymers of ethylenically unsaturated carboxylic acid esters with polyoxyalkylene ethers of lower, unsaturated alcohols as flow-improving agents for paraffin containing oils | Sigmar-Peter von Halasz, Werner Reimann, Juliane Balzer, Horst Geiss | 1998-02-17 |
| 5705603 | Polyetheramines with polymers of .alpha., .beta.-unsaturated dicarboxylic acids | Michael Feustel, Erdmann Mielcke | 1998-01-06 |
| 5439981 | Graft polymers, their preparation and use as pour point depressants and flow improvers for crude oils, residual oils and middle distillates | Juliane Balzer, Michael Feustel, Werner Reimann | 1995-08-08 |
| 5391632 | Terpolymers based on .alpha.,.beta.-unsaturated dicarboxylic anhydrides, .alpha.,.beta.-unsaturated compounds and polyoxyalkylene ethers of lower unsaturated alcohols | Michael Feustel | 1995-02-21 |
| 5326906 | Process for the extractive removal of phospho- and sulfobetaines from acidic reaction solutions | Heribert Tetzlaff, Gernot Kremer, Christoph Porz | 1994-07-05 |
| 5302677 | Alkenylaminoalkane-1,1-diphosphonic acid derivatives and copolymers thereof with unsaturated carboxylic acids | Christoph Naumann, Herrmann Hoffmann | 1994-04-12 |