Patents by Inventor G. Marsden Blanch

G. Marsden Blanch 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).

  • Electrosurgical knife
    Patent number: 4876110
    Abstract: An electrosurgical knife includes a stainless steel blade whose surface is abraded or etched, a first coat of primer material applied over the blade, where the surface of the primer material is also abraded or etched, and a second coat of non-stick fluorinated hydrocarbon material applied over the coat of primer material to cover the primer material, for a total thickness of about three mils. The stainless steel blade is completely covered by the coatings but the thickness of the coatings is not so great as to prevent conduction of radio-frequency electrical energy from the blade through the coatings to tissue being cut.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: October 24, 1989
    Assignee: American Medical Products, Inc.
    Inventor: G. Marsden Blanch
  • Electrosurgical knife
    Patent number: 4785807
    Abstract: An electrosurgical knife includes a stainless steel blade whose surface is abraided or etched, a first coat of primer material applied over the blade, where the surface of the primer material is also abraided or etched, and a second coat of non-stick fluorinated hydrocarbon material applied over the coat of primer material to cover the primer material, for a total thickness of about three mils. The stainless steel blade is completely covered by the coatings but the thickness of the coatings is not so great as to prevent conduction of radio-frequency electrical energy from the blade through the coatings to tissue being cut.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: November 22, 1988
    Assignee: American Medical Products, Inc.
    Inventor: G. Marsden Blanch