Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6461393 | Mixtures of carboxylic acids, their derivatives and hydroxyl-containing polymers and their use for improving the lubricating effect of oils | Matthias Krull | 2002-10-08 |
| 6281292 | Mixtures of copolymers having an improved lubricating action | Matthias Krull, Markus Kupetz | 2001-08-28 |
| 6110238 | Process for improving the cold-flow properties of fuel oils | Matthias Krull | 2000-08-29 |
| 6090169 | Process for improving the cold-flow properties of fuel oils | Matthias Krull | 2000-07-18 |
| 6013114 | Environmentally friendly diesel fuel | Martin Hille, Frank Weinelt, Heinz Wittkus | 2000-01-11 |
| 6010989 | Additive for improving the flow properties of mineral oils and mineral oil distillates | Matthias Krull | 2000-01-04 |
| 5998530 | Flowability of mineral oils and mineral oil distillates using alkylphenol-aldehyde resins | Matthias Krull, Michael Feustel, Ulrike Tepper | 1999-12-07 |
| 5789510 | Terpolymers of ethylene, their preparation and their use as additives for mineral oil distillates | Matthias Krull | 1998-08-04 |
| 5767190 | Terpolymers of ethylene, their preparation and their use as additives for mineral oil distillates | Matthias Krull | 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 | Matthias Krull, Sigmar-Peter von Halasz, Juliane Balzer, Horst Geiss | 1998-02-17 |
| 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, Matthias Krull | 1995-08-08 |
| 5254652 | Terpolymers of ethylene, their preparation, and their use as additives for mineral oil distillates | Michael Feustel, John Hobes | 1993-10-19 |
| 5205839 | Terpolymers of ethylene, their preparation and their use as additives for mineral oil distillates | — | 1993-04-27 |
| 5200484 | Terpolymers of ethylene, their preparation and their use as additives for mineral oil distillates | — | 1993-04-06 |
| 5145923 | Process for the preparation of ethylene/vinyl ester copolymers | John Hobes, Wolfgang Payer | 1992-09-08 |