Patents by Inventor Alexander Liebenau

Alexander Liebenau 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).

  • Constant velocity joint having a boot
    Patent number: 11473032
    Abstract: A constant velocity joint having a boot constructed from a thermoplastic polyether ester as the boot material. The boot includes a lubricating grease composition for lubricating the constant velocity joint, the lubricating grease composition comprising calcium lignin sulfonate.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: October 18, 2022
    Assignee: FUCHS PETROLUB SE
    Inventors: Thomas Litters, Alexander Liebenau
  • Constant Velocity Joint Having A Boot
    Publication number: 20200115650
    Abstract: A constant velocity joint having a boot constructed from a thermoplastic polyether ester as the boot material. The boot includes a lubricating grease composition for lubricating the constant velocity joint, the lubricating grease composition comprising calcium lignin sulfonate.
    Type: Application
    Filed: December 11, 2019
    Publication date: April 16, 2020
    Inventors: Thomas Litters, Alexander Liebenau
  • Constant Velocity Joint Having A Boot
    Publication number: 20170145340
    Abstract: A constant velocity joint having a boot constructed from a thermoplastic polyether ester as the boot material. The boot includes a lubricating grease composition for lubricating the constant velocity joint, the lubricating grease composition comprising calcium lignin sulfonate.
    Type: Application
    Filed: February 8, 2017
    Publication date: May 25, 2017
    Inventors: Thomas Litters, Alexander Liebenau
  • Calcium/lithium complex greases and encapsulated constant velocity joint containing the grease and method for their production
    Patent number: 8603958
    Abstract: Embodiments of the invention include compositions of calcium/lithium complex greases containing calcium/lithium soaps having a high calcium fraction and complexing agents, encapsulated constant velocity shafts containing such lubricating greases and the use of the lubricating greases in encapsulated shafts of constant velocity shafts.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: December 10, 2013
    Assignee: Fuchs Petrolub AG
    Inventors: Thomas Litters, Alexander Liebenau
  • Lubricating Greases Containing Lignosulfonate, The Production Thereof, and the Uses Thereof
    Publication number: 20120302472
    Abstract: The object of the invention are lubricating greases that contain calcium lignin sulfonates, and which consist of a base oil, calcium soaps, calcium lignin sulfonate having average molecular weights (weight average) greater than 10,000 g/mol as well as other, optional alkaline earth lignin sulfonates, producible by heating to temperatures above 120° C. converting and driving out components with low boiling point in order to produce a base grease, and cooling and addition of base oil and possibly other additives with mixing, a corresponding process, and use of the lubricating greases containing calcium lignin sulfonate.
    Type: Application
    Filed: January 31, 2011
    Publication date: November 29, 2012
    Applicant: FUCHS PETROLUB AG
    Inventors: Thomas Litters, Alexander Liebenau
  • Calcium/Lithium Complex Greases and Encapsulated Constant Velocity Joint Containing the Grease and Method for their Production
    Publication number: 20100048436
    Abstract: Embodiments of the invention include compositions of calcium/lithium complex greases containing calcium/lithium soaps having a high calcium fraction and complexing agents, encapsulated constant velocity shafts containing such lubricating greases and the use of the lubricating greases in encapsulated shafts of constant velocity shafts.
    Type: Application
    Filed: July 24, 2009
    Publication date: February 25, 2010
    Applicant: FUCHS PETROLUB AG
    Inventors: Thomas Litters, Alexander Liebenau