Patents by Inventor Nadja Kempkes

Nadja Kempkes 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).

  • Process for impregnating porous mineral substrates
    Patent number: 7611753
    Abstract: A process is provided for impregnating porous mineral substrates by a spray technique in which use is made of a gas-supported spraying assembly to apply liquid impregnating agent in a controlled manner to the substrate surface, the amount consumed being markedly less than the amount consumed in a conventional method of application by a flow-coating process.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: November 3, 2009
    Assignee: Degussa AG
    Inventors: Bernd Bartkowiak, Kerstin Weissenbach, Nadja Kempkes, Burkhard Standke
  • Process for impregnating porous mineral substrates
    Publication number: 20030203117
    Abstract: A process is provided for impregnating porous mineral substrates by a spray technique in which use is made of a gas-supported spraying assembly to apply liquid impregnating agent in a controlled manner to the substrate surface, the amount consumed being markedly less than the amount consumed in a conventional method of application by a flow-coating process.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 30, 2003
    Applicant: DEGUSSA AG
    Inventors: Bernd Bartkowiak, Kerstin Weissenbach, Nadja Kempkes, Burkhard Standke