Patents by Inventor Franklin H. Ellis

Franklin H. Ellis 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).

  • Metalized medical treatment electrode with insulated edge
    Patent number: 4419091
    Abstract: An ion treatment electrode has a porous polymer substrate with a conductive coating. A non-conductive solution impervious border is provided by applying to adjacent substrate, sufficient heat and pressure to melt the polymer and disrupt the conductive coating.
    Type: Grant
    Filed: February 12, 1981
    Date of Patent: December 6, 1983
    Assignee: Sybron Corporation
    Inventors: Robert S. Behl, Franklin H. Ellis
  • Electric supply for ion therapy
    Patent number: 4292968
    Abstract: A power supply provides direct current to electrodes attached to a patient. The positive electrode is at least partially silver and releases silver ions as a result of the electric current. Silver ions have known bactericidal properties and may be used to treat infected living tissue. Tissue may, however, be damaged by voltages in excess of 1.1 volts. Accordingly, the power supply has two modes. Under normal conditions the power supply has a constant current output. If the voltage between the electrodes reaches a reference voltage of not more than 1.1 volt, the output is changed to a constant voltage mode, abruptly limiting the output voltage. A mode indicator may be incorporated in the supply.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: October 6, 1981
    Assignee: Sybron Corporation
    Inventor: Franklin H. Ellis
  • Material and method for introducing ionic silver to dental pulp
    Patent number: 4126937
    Abstract: A pulp cap mixture is prepared from silver particles and a dental cement such as polycarboxylate cement. Provision is made to apply low intensity direct current through the material placed in proximity to the pulp tissue. Ionic silver is released which provides anti-bacterial action.
    Type: Grant
    Filed: March 23, 1977
    Date of Patent: November 28, 1978
    Assignees: Sybron Corporation, Eastman Dental Center
    Inventors: Franklin H. Ellis, Edward A. Thibodeau
  • Method of in vivo sterilization of surgical implantables
    Patent number: 4027393
    Abstract: Surgical and dental apparatus may be sterilized after implantation in the patient and caused to provide bactericidal effects in the tissue proximate to the apparatus. The apparatus contains silver or is silver coated. A positive current is applied to the apparatus which releases atomic silver into the volume surrounding the apparatus.
    Type: Grant
    Filed: September 19, 1975
    Date of Patent: June 7, 1977
    Assignee: Sybron Corporation
    Inventors: Franklin H. Ellis, Stephen W. Andrews
  • Method of using electrodes having antiseptic properties for LIDC therapy
    Patent number: 3964477
    Abstract: An electrode for use in low intensity direct current therapy of skin lesions and the like. The electrode contains silver from which silver ions are carried to the treatment site under the influence of direct current to provide a germicidal action at the lesion. The electrode may have a porous support structure and some of the silver may be chlorided. The electrode is maintaned in substantially direct contact with the treatment site while being saturated with an electrolyte similar to tissue fluids.
    Type: Grant
    Filed: January 30, 1975
    Date of Patent: June 22, 1976
    Assignee: Sybron Corporation
    Inventors: Franklin H. Ellis, Stephen W. Andrews