Patents by Inventor Eric Haffenden

Eric Haffenden 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).

  • Grid for melt-spinning
    Patent number: 4078550
    Abstract: A melt grid for the melting of particulate, solid polymer, comprising a receiving face onto which solid polymer is fed and an effluent face from which molten polymer flows, the grid being supplied with heat in a region removed from the effluent face and there being an impediment to the passage of heat between the region to which heat is supplied and the effluent face.
    Type: Grant
    Filed: March 8, 1976
    Date of Patent: March 14, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: Eric Haffenden