Patents by Inventor Georg GEISBERGER

Georg GEISBERGER 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).

  • FILTER MEDIUM COMPRISING A NONWOVEN ELECTRET
    Publication number: 20230398478
    Abstract: The present invention relates to a filter medium suitable for air filtration as well as related assemblies and methods.
    Type: Application
    Filed: November 9, 2021
    Publication date: December 14, 2023
    Inventors: Georg Geisberger, Christian Hanfstingl
  • FILTER MEDIUM HAVING A NONWOVEN LAYER AND A MELT-BLOWN LAYER
    Publication number: 20230012056
    Abstract: A filter medium is disclosed having a nonwoven layer, which has bicomponent fibres, and a melt-blown layer, which comprises polyester fibres having an average diameter (d1) of less than 1.8 ?m. The thickness of the nonwoven layer is less than 0.4 mm at a contact pressure of 0.1 bar. At least 25% of the polyester fibres of the melt-blown layer have a diameter (d) of less than 1 ?m.
    Type: Application
    Filed: May 24, 2022
    Publication date: January 12, 2023
    Inventors: Andreas DEMMEL, Georg GEISBERGER
  • FILTER MEDIUM FOR ENGINE AIR FILTERS
    Publication number: 20220096980
    Abstract: A filter medium for engine air filters contains a support layer and a meltblown layer containing polyester fibres. The filter medium is electrically charged.
    Type: Application
    Filed: January 10, 2020
    Publication date: March 31, 2022
    Applicant: NEENAH GESSNER GMBH
    Inventors: Georg GEISBERGER, Andreas Demmel
  • FILTER MEDIUM HAVING A NONWOVEN LAYER AND A MELT-BLOWN LAYER
    Publication number: 20200398200
    Abstract: The invention relates to a filter medium comprising a nonwoven layer, which has bicomponent fibres, and a melt-blown layer, which comprises polyester fibres having an average diameter (d1) of less than 1.8 ?m. The thickness of the nonwoven layer is less than 0.4 mm at a contact pressure of 0.1 bar. At least 25% of the polyester fibres of the melt-blown layer have a diameter (d) of less than 1 ?m.
    Type: Application
    Filed: January 14, 2019
    Publication date: December 24, 2020
    Inventors: Andreas DEMMEL, Georg GEISBERGER