Patents by Inventor Rudolf Freiler

Rudolf Freiler 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 having large fold spacing
    Patent number: 10668424
    Abstract: The inventive semi-finished product for a filter, particularly an air filter, comprises a filter medium, wherein said filter medium comprises a nonwoven having fibrous structure produced in a melt-spinning process and at least partially arranged in pleated layers.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: June 2, 2020
    Assignee: IREMA-FILTER GMBH
    Inventor: Rudolf Freiler
  • Filter Medium Having Large Fold Spacing
    Publication number: 20170259201
    Abstract: The inventive semi-finished product for a filter, particularly an air filter, comprises a filter medium, wherein said filter medium comprises a nonwoven having fibrous structure produced in a melt-spinning process and at least partially arranged in pleated layers.
    Type: Application
    Filed: November 20, 2015
    Publication date: September 14, 2017
    Inventor: Rudolf Freiler