Patents by Inventor Ulrike Tepper

Ulrike Tepper has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Flowability of mineral oils and mineral oil distillates using alkylphenol-aldehyde resins
    Patent number: 5998530
    Abstract: Improving the flowability of mineral oils and mineral oil distillates using alkylphenol-aldehyde resinsThe invention relates to a process for improving the flowability of paraffin-containing mineral oils and mineral oil distillates by adding flow improvers based on ethylene/vinyl ester co- and terpolymers, alkylphenol-aldehyde resins and, if appropriate, other paraffin dispersants, mixtures of these different flow improvers and mineral oils and mineral oil distillates which comprise these flow improvers.
    Type: Grant
    Filed: January 5, 1998
    Date of Patent: December 7, 1999
    Assignee: Clariant GmbH
    Inventors: Matthias Krull, Michael Feustel, Werner Reimann, Ulrike Tepper