Patents by Inventor Jefferson K. Allen

Jefferson K. Allen 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).

  • Composition for cleaning and clearing plastic surfaces
    Patent number: 4595719
    Abstract: Clouded acrylate surfaces are cleaned permanently. The clouded surface is first cleaned using a petroleum distillate. Subsequently, a coating of an oil-monomer modified alkyl resin, 71-78% non-volatile, is coated on the surface to prevent further clouding.
    Type: Grant
    Filed: October 30, 1984
    Date of Patent: June 17, 1986
    Inventor: Jefferson K. Allen
  • Method for cleaning and clearing plastic surfaces
    Patent number: 4479985
    Abstract: Clouded acrylate surfaces are cleaned permanently. The clouded surface is first cleaned using a petroleum distillate. Subsequently, a coating of an oil-monomer modified alkyl resin, 71-78% non-volatile, is coated on the surface to prevent further clouding.
    Type: Grant
    Filed: December 17, 1981
    Date of Patent: October 30, 1984
    Inventor: Jefferson K. Allen