Patents by Inventor Harry V. Samelson

Harry V. Samelson 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).

  • Spinneret for production of a hollow filament within a hollow filament composite fiber having spacing means
    Patent number: 4941812
    Abstract: The apparatus concerns hollow fibers and, more particularly, a hollow filament co-spun within another hollow filament composite fiber wherein spacing means is provided to separate the inner and outer filament walls and spinnerets for co-spinning such fibers.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: July 17, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Harry V. Samelson