Patents by Inventor David John Groves

David John Groves 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).

  • Casting of polymeric film
    Patent number: 4046842
    Abstract: AC electrostatic-pinning for the casting and quenching of polymeric film, especially polyethylene terephthalate film.
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: September 6, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: David John Groves, Albert Mason