Patents by Inventor Ronald A. McDow

Ronald A. McDow 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).

  • Method for using cryogenic agents for treating skin lesions
    Patent number: 5516505
    Abstract: A method for cryogenically treating skin lesions employing a device for applying cryogenic refrigerant in a liquid pool contacting the area of the skin lesion at a temperature and for a time such that permanent, irreversible rupture of the cellular membrane of the skin cells occurs, wherein the device employs a synthetic plastic foam applicator at the distal end of a tube which may be connected to an aerosol or pressurized container containing the cryogenic refrigerant.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: May 14, 1996
    Inventor: Ronald A. McDow
  • Method for using cryogenic agents for treating skin lesions
    Patent number: 5330745
    Abstract: A method for cryogenically treating skin lesions employing a hollow fluid retaining device for retaining cryogenic refrigerant in a liquid pool contacting the area of the skin lesion at a temperature and for a time such that permanent, irreversible rupture of the cellular membrane of the skin cells occurs.
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: July 19, 1994
    Inventor: Ronald A. McDow
  • Medical process--use of dichlorodifluoromethane (CCl.sub.2 F2) and chlorodifluoromethane (CHClF.sub.2) as cryogens for treating skin lesions
    Patent number: 5200170
    Abstract: Use of CCl.sub.2 F.sub.2 or CHClF.sub.2 to perform cryogenic surgery on a variety of skin lesions is described.
    Type: Grant
    Filed: July 18, 1989
    Date of Patent: April 6, 1993
    Inventor: Ronald A. McDow