Patents by Inventor Robert D. Presson

Robert D. Presson 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).

  • Continuous acetonitrile recovery process
    Patent number: 4362603
    Abstract: Crude acetonitrile is purifed to 99+ weight percent by a continuous distillation procedure.
    Type: Grant
    Filed: January 2, 1981
    Date of Patent: December 7, 1982
    Assignee: The Standard Oil Company
    Inventors: Robert D. Presson, Hsin-Chih Wu, Edward J. Sockell