Patents by Inventor Holger Gross

Holger Gross 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).

  • Acrylate-olefin copolymers as high viscosity base fluids
    Patent number: 11981877
    Abstract: Acrylate-olefin copolymers and a method for the preparation of these copolymers are provided. Lubricant compositions can contain the aforementioned copolymers. The copolymers are useful as a lubricant additive or a synthetic base fluid in a lubricating oil composition, preferably in a gear oil composition, a transmission oil composition, a hydraulic oil composition, an engine oil composition, a marine oil composition, an industrial lubricating oil composition or in grease.
    Type: Grant
    Filed: May 22, 2023
    Date of Patent: May 14, 2024
    Assignee: Evonik Operations GmbH
    Inventors: Emily Clare Schweißinger, Stefan Karl Maier, Katja Nothdurft, Yvonne Groß-Onnebrink, Dieter Janßen, Holger Pletsch, Stefan Hilf, Denise Kleinschmidt, Sebastian Babik
  • Method of the dewatering of sludge
    Patent number: 5143628
    Abstract: A sludge volume of difficult to dewater sludge is subdivided in a sludge dewatering press into fractional volumes which are self-draining even at press pressures of 50 bar and more. The partitions are water-permeable and form water channels for conducting the expressed liquid away from the sludge volume.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: September 1, 1992
    Assignee: G. Siempelkamp GmbH & Co.
    Inventors: Reinhard Bott, Robert Kern, Thomas Langeloh, Holger Gross