Patents by Inventor Brigitte Mayrhofer

Brigitte Mayrhofer 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).

  • Environmentally friendly lubricating grease for steel ropes
    Patent number: 11421181
    Abstract: An environmentally acceptable lubricating grease, comprising: a) 50 wt % to 90 wt % of a biodegradable base oil comprising a biodegradable ester as base oil; b) 3 wt % to 25 wt % of a thickener selected from b1) 3 wt % to 12 wt % biodegradable calcium soap, b2) 3 wt % to 25 wt % bentonites, b3) and mixtures thereof; c) 4 wt % to 40 wt % additives, comprising c1) 1 wt % to 12 wt % fumed silicon dioxide and/or polytetrafluoroethylene and/or mixtures thereof, c2) 2 wt % to 45 wt % of a polymer selected from polyisobutylene, polyisobutylene/butene copolymer, polymethacrylates, polyesters and mixtures thereof, c3) 0.5 wt % to 20 wt % of a solid lubricant.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: August 23, 2022
    Assignee: KLUEBER LUBRICATION MUENCHEN SE & CO. KG
    Inventors: Brigitte Mayrhofer, Maximilian Erhard, Patrick Wittmeyer, Stefan Seemeyer
  • ENVIRONMENTALLY FRIENDLY LUBRICATING GREASE FOR STEEL ROPES
    Publication number: 20210277323
    Abstract: An environmentally acceptable lubricating grease, comprising: a) 50 wt % to 90 wt % of a biodegradable base oil comprising a biodegradable ester as base oil; b) 3 wt % to 25 wt % of a thickener selected from b1) 3 wt % to 12 wt % biodegradable calcium soap, b2) 3 wt % to 25 wt % bentonites, b3) and mixtures thereof; c) 4 wt % to 40 wt % additives, comprising c1) 1 wt % to 12 wt % fumed silicon dioxide and/or polytetrafluoroethylene and/or mixtures thereof, c2) 2 wt % to 45 wt % of a polymer selected from polyisobutylene, polyisobutylene/butene copolymer, polymethacrylates, polyesters and mixtures thereof, c3) 0.5 wt % to 20 wt % of a solid lubricant.
    Type: Application
    Filed: July 9, 2019
    Publication date: September 9, 2021
    Inventors: Brigitte Mayrhofer, Maximilian Erhard, Patrick Wittmeyer, Stefan Seemeyer