Patents by Inventor Stefan Laeuger

Stefan Laeuger 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).

  • Aqueous functional fluids with antioxidants
    Patent number: 8329625
    Abstract: The present invention relates to an aqueous functional fluid comprising an antioxidant of the hindered phenol type and a water-soluble polyalkylene glycol. The aqueous functional fluids are especially suitable for use as hydraulic or metal working fluids. The present invention also relates to the use of the aqueous functional fluid for improving the performance properties of hydraulic or metal working fluids.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: December 11, 2012
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Peter Rohrbach, Samuel Evans, Stefan Laeuger
  • AQUEOUS FUNCTIONAL FLUIDS WITH ANTIOXIDANTS
    Publication number: 20100213410
    Abstract: The present invention relates to an aqueous functional fluid comprising an antioxidant of the hindered phenol type and a water-soluble polyalkylene glycol. The aqueous functional fluids are especially suitable for use as hydraulic or metal working fluids. The present invention also relates to the use of the aqueous functional fluid for improving the performance properties of hydraulic or metal working fluids.
    Type: Application
    Filed: May 3, 2010
    Publication date: August 26, 2010
    Inventors: Peter Rohrbach, Samuel Evans, Stefan Laeuger
  • Aqueous functional fluids with antioxidants
    Publication number: 20050020457
    Abstract: The present invention relates to an aqueous functional fluid comprising an antioxidant of the hindered phenol type and a water-soluble polyalkylene glycol. The aqueous functional fluids are especially suitable for use as hydraulic or metal working fluids. The present invention also relates to the use of the aqueous functional fluid for improving the performance properties of hydraulic or metal working fluids.
    Type: Application
    Filed: November 13, 2002
    Publication date: January 27, 2005
    Inventors: Peter Rohrbach, Samuel Evans, Stefan Laeuger