Patents by Inventor Frank Bernhard

Frank Bernhard 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 burning residual fuel oil in distillate fuel oil burners
    Patent number: 3977823
    Abstract: This invention comprises a method whereby heated residual fuel oils can be successfully burned in existing conventional forced atomizing air type small capacity industrial oil burners.
    Type: Grant
    Filed: July 2, 1975
    Date of Patent: August 31, 1976
    Inventor: Frank Bernhard