Patents by Inventor Yefim Rotenberg

Yefim Rotenberg 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).

  • Apparatus & Method for indirect evaporative cooling of a fluid
    Patent number: 5187946
    Abstract: An apparatus and method for indirect cooling of air from its ambient temperature to substantially its dew point. Ambient air is redirected through spaced openings formed along the heat exchanger plates to form a secondary air stream.
    Type: Grant
    Filed: September 24, 1991
    Date of Patent: February 23, 1993
    Inventors: Yefim Rotenberg, Mitchel T. Wolfe