Patents by Inventor Hans-Jürgen Meitinger

Hans-Jürgen Meitinger 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
    Patent number: 9028579
    Abstract: The present invention relates to a method for the manufacture of a multilayered filter medium whose air permeability is at least 500 l/m2sec and a multilayered filter medium obtainable by said method which, when charged with 5 mg/cm2 SAE-dust of the class “fine”, exhibits a pressure increase of no more than 100 Pa.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: May 12, 2015
    Assignee: Johns Manville
    Inventors: Christian Hassmann, Joerg Lehnert, Hans-Juergen Meitinger
  • FILTER MEDIUM
    Publication number: 20130305671
    Abstract: The present invention relates to a method for the manufacture of a multilayered filter medium whose air permeability is at least 500 l/m2sec and a multilayered filter medium obtainable by said method which, when charged with 5 mg/cm2 SAE-dust of the class “fine”, exhibits a pressure increase of no more than 100 Pa.
    Type: Application
    Filed: May 15, 2013
    Publication date: November 21, 2013
    Applicant: JOHNS MANVILLE
    Inventors: Christian Hassmann, Joerg Lehnert, Hans-Juergen Meitinger
  • Filter medium
    Patent number: 8465564
    Abstract: The present invention relates to a method for the manufacture of a multilayered filter medium whose air permeability is at least 500 l/m2sec and a multilayered filter medium obtainable by said method which, when charged with 5 mg/cm2 SAE-dust of the class “fine”, exhibits a pressure increase of no more than 100 Pa.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: June 18, 2013
    Assignee: Johns Manville
    Inventors: Christian Hassman, Jörg Lehnert, Hans-Juergen Meitinger
  • FILTER MEDIUM
    Publication number: 20110253645
    Abstract: The present invention relates to a filter composed of a multi-ply filter medium, which comprises at least one non-woven stiffening layer, at least one filtration layer, at least one covering layer and where necessary at least one non-woven microfibre layer, the non-woven stiffening layer comprising fibres of synthetic polymers and the fibres being both partially oriented and oriented fibres.
    Type: Application
    Filed: June 28, 2011
    Publication date: October 20, 2011
    Inventors: Christian Hassmann, Hans-Jürgen Meitinger, Kurt Plotz, Jürgen Umminger, Michael Schops
  • Filter medium
    Patent number: 7993427
    Abstract: The present invention relates to a filter composed of a multi-ply filter medium, which comprises at least one non-woven stiffening layer, at least one filtration layer, at least one covering layer and where necessary at least one non-woven microfiber layer, the non-woven stiffening layer comprising fibers of synthetic polymers and the fibers being both partially oriented and oriented fibers.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: August 9, 2011
    Assignee: Johns Manville
    Inventors: Christian Hassmann, Hans-Jürgen Meitinger, Kurt Plötz, Jürgen Umminger, Michael Schöps
  • FILTER MEDIUM
    Publication number: 20100307338
    Abstract: The present invention relates to a method for the manufacture of a multilayered filter medium whose air permeability is at least 500 l/m2sec and a multilayered filter medium obtainable by said method which, when charged with 5 mg/cm2 SAE-dust of the class “fine”, exhibits a pressure increase of no more than 100 Pa.
    Type: Application
    Filed: May 18, 2010
    Publication date: December 9, 2010
    Inventors: Christian Hassman, Jörg Lehnert, Hans-Juergen Meitinger