Patents by Inventor Frits Schultink

Frits Schultink 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).

  • Method of manufacturing a filter material
    Patent number: 6017411
    Abstract: For manufacturing filter material, a non-woven filter web is formed from electrostatically charged dielectric fibers. In order to give dimensional stability to the filter material without adversely affecting the permeability of the filter material, filaments or narrow strips are placed essentially at a distance from each other on at least one of the two sides of the filter web and fixed to the non-woven filter web.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: January 25, 2000
    Assignee: Airflo Europe N.V.
    Inventors: Jan Schultink, Frits Schultink