Patents by Inventor Herbert Rand

Herbert Rand 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).

  • Cryogenic rectal insert
    Patent number: 4841970
    Abstract: A cryogenic proctologic insert for treating hemorrhoids by lowering the surface temperature of the affected portion of the rectal canal. The insert is formed of a tubular plastic portion filled with a congealable fluid. Extended heat transfer surfaces are provided in the interior of the insert to promote heat transfer to and from the fluid.
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: June 27, 1989
    Inventor: Herbert Rand