Patents by Inventor W. A. Riese

W. A. Riese 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 of forming a heat exchanger tube
    Patent number: 4419802
    Abstract: Disclosed herein is a method for forming a heat exchanger tube comprising the steps of inserting an inner tube within an outer tube, interposing therebetween a heat conductive fin element and expanding the inner tube thereby causing frictional engagement of the inner tube, outer tube and interposed fin.
    Type: Grant
    Filed: September 11, 1980
    Date of Patent: December 13, 1983
    Inventor: W. A. Riese