Patents by Inventor Mark George Marshall

Mark George Marshall 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).

  • Surgical instrument
    Patent number: 6966909
    Abstract: An electrosurgical instrument for use in cutting and/or coagulating tissue includes one or more electrode surfaces (15 and 16) at least partly coated with tungsten disulphide. The tungsten disulphide coating acts to reduce the incidence of tissue becoming adhered to the or each electrode surface (15, 16). Examples of electrosurgical instruments employing such coated electrodes include forceps, scissors or scalpel blade instruments.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: November 22, 2005
    Assignee: Gyrus Medical Limited
    Inventors: Mark George Marshall, Colin Charles Owen Goble
  • Surgical instrument
    Publication number: 20030176858
    Abstract: An electrosurgical instrument for use in cutting and/or coagulating tissue includes one or more electrode surfaces (15 and 16) at least partly coated with tungsten disulphide. The tungsten disulphide coating acts to reduce the incidence of tissue becoming adhered to the or each electrode surface (15, 16). Examples of electrosurgical instruments employing such coated electrodes include forceps, scissors or scalpel blade instruments.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 18, 2003
    Applicant: Gyrus Medical Limited
    Inventors: Mark George Marshall, Colin Charles Owen Goble
  • Surgical instrument
    Publication number: 20030139741
    Abstract: An electrosurgical instrument for use in cutting and/or coagulating tissue includes one or more electrode surfaces coated with a material having a positive temperature coefficient of impedance. The PTC coating acts to control the temperature of the electrodes and to reduce the incidence of tissue becoming adhered to the electrode surface. Examples of electrosurgical instruments employing such coated electrodes include forceps, scissors or scalpel blade instruments.
    Type: Application
    Filed: December 31, 2002
    Publication date: July 24, 2003
    Applicant: Gyrus Medical Limited
    Inventors: Colin Charles Owen Goble, Mark George Marshall