Patents by Inventor Kai Feller

Kai Feller 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).

  • Composite material with adhesion promoter layer based on Si, C and O
    Patent number: 11897208
    Abstract: A composite material includes: a substrate and a polymer layer which are interconnected by an adhesion promoter layer. The adhesion promoter layer is obtainable by plasma-enhanced chemical vapor deposition (PE-CVD) at least partially using a mixture of precursor compounds containing an unsaturated hydrocarbon and an organosilicon compound. In an embodiment, the substrate includes a metal substrate or a polymer substrate.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: February 13, 2024
    Assignee: CARL FREUDENBERG KG
    Inventors: Friederike von Fragstein, Albin Marksteiner, Roman Christopher, Stephan Rutz, Katharina Hallstein, Kai Feller, Yvonne Fetsch, Matthias Adler
  • Plasma-coated sealing element
    Patent number: 11371614
    Abstract: A method includes using a sealing element to dynamically seal a sealing body in the presence of a lubricant. The sealing element has an elastomeric base body and a plasma coating. The coating includes the elements carbon, oxygen, silicon, and hydrogen. The coating has the following properties at least at the surface: the amount ratio C:Si (at %/at %) is >5, the amount ratio O:Si (at %/at %) is >3, and the surface energy is <50 mN/m. In an embodiment, the coating includes the element fluorine.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: June 28, 2022
    Assignee: CARL FREUDENBERG KG
    Inventors: Friederike Von Fragstein, Matthias Adler, Stephan Rutz, Thomas Schnetz, Katharina Hallstein, Kai Feller, Boris Traber, Erich Prem
  • PLASMA-COATED SEALING ELEMENT
    Publication number: 20210148466
    Abstract: A method includes using a sealing element to dynamically seal a sealing body in the presence of a lubricant. The sealing element has an elastomeric base body and a plasma coating. The coating includes the elements carbon, oxygen, silicon, and hydrogen. The coating has the following properties at least at the surface: the amount ratio C:Si (at %/at %) is >5, the amount ratio O:Si (at %/at %) is >3, and the surface energy is <50 mN/m. In an embodiment, the coating includes the element fluorine.
    Type: Application
    Filed: April 18, 2018
    Publication date: May 20, 2021
    Inventors: Friederike Von Fragstein, Matthias Adler, Stephan Rutz, Thomas Schnetz, Katharina Hallstein, Kai Feller, Boris Traber, Erich Prem
  • COMPOSITE MATERIAL WITH ADHESION PROMOTER LAYER BASED ON SI, C AND O
    Publication number: 20200223152
    Abstract: A composite material includes: a substrate and a polymer layer which are interconnected by an adhesion promoter layer. The adhesion promoter layer is obtainable by plasma-enhanced chemical vapor deposition (PE-CVD) at least partially using a mixture of precursor compounds containing an unsaturated hydrocarbon and an organosilicon compound. In an embodiment, the substrate includes a metal substrate or a polymer substrate.
    Type: Application
    Filed: January 9, 2020
    Publication date: July 16, 2020
    Inventors: Friederike von Fragstein, Albin Marksteiner, Roman Christopher, Stephan Rutz, Katharina Hallstein, Kai Feller, Yvonne Fetsch, Matthias Adler