Patents by Inventor Marcus Ilan

Marcus Ilan 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).

  • Polyester fiberfill and process
    Patent number: 4783364
    Abstract: Polyester fiberfill having spiral-crimp, especially in the form of an omega (.OMEGA.), that is randomly-arranged and entangled in the form of fiberballs with a minimum of hairs extending from their surface, and having a refluffable characteristic similar to that of down on account of the low cohesion between the balls. A process for making such fiberballs by repeatedly air-tumbling small tufts of such fiberfill against the wall of a vessel.
    Type: Grant
    Filed: October 21, 1986
    Date of Patent: November 8, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Marcus Ilan