Patents by Inventor Frederick P. Robbins, III

Frederick P. Robbins, III 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).

  • Naphthenic acid corrosion inhibitors
    Patent number: 5182013
    Abstract: Naphthenic acid corrosion in refinery distillation units is inhibited by introducing into the units effective amounts of a polysulfide corrosion inhibitor.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: January 26, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Philip R. Petersen, Frederick P. Robbins, III, William G. Winston