Patents by Inventor Donald A. Wingard

Donald A. Wingard 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).

  • Methods of recycling post-consumer carpet
    Patent number: 7784719
    Abstract: Disclosed are efficient and cost-effective methods of recovering primary construction materials from whole carpet. The present methods are particularly appropriate for recovering nylon or polyester face fibers from post-industrial, post-consumer carpet waste.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: August 31, 2010
    Assignee: Wellman Plastics Recycling, LLC
    Inventor: Donald A. Wingard