Patents by Inventor Christian B. Widen

Christian B. Widen 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).

  • Hydroentangling using a fabric having flat filaments
    Publication number: 20040198118
    Abstract: A fabric incorporating flattened filaments for use as a support fabric in producing a nonwoven product by a hydroentangling process, and a hydroentangling method employing such a fabric.
    Type: Application
    Filed: December 8, 2003
    Publication date: October 7, 2004
    Inventors: Mark J. Levine, Christian B. Widen
  • Non-wovens manufacturing process
    Patent number: 5115544
    Abstract: A method for producing a non-woven fabric having specific designed patterns in designated areas is shown. The method requires the use of a fine-mesh woven screen of metal or plastic threads. The desired patterns may be pressed onto the screen to form raised indentations. Alternatively, they may be attached or extruded thereon, or woven or stitched thereinto. The non-woven fabrics produced, using the screens in place of those typically found on a non-woven fabric production apparatus, will have patterns corresponding to those on the screen.
    Type: Grant
    Filed: April 3, 1990
    Date of Patent: May 26, 1992
    Assignee: Albany International Corp.
    Inventor: Christian B. Widen