Patents by Inventor Fred T. Clark

Fred T. Clark 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).

  • High-pressure condensate recycle in the manufacture of purified aromatic carboxylic acids
    Patent number: 9315441
    Abstract: Processes for manufacturing purified aromatic carboxylic acids include: generating high-pressure steam from boiler feed water supplied to a boiler; heating a crude aromatic carboxylic acid using the high-pressure steam, whereby the high pressure steam is condensed to form a high-pressure condensate; and purifying the crude aromatic carboxylic acid to form a purified aromatic carboxylic acid. The boiler feed water includes at least a portion of the high-pressure condensate and makeup boiler feed water from at least one additional source.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: April 19, 2016
    Assignee: BP Corporation North America Inc.
    Inventors: Fred T. Clark, Thomas M. Bartos, Allen Nelson
  • High-Pressure Condensate Recycle in the Manufacture of Purified Aromatic Carboxylic Acids
    Publication number: 20150183710
    Abstract: Processes for manufacturing purified aromatic carboxylic acids include: generating high-pressure steam from boiler feed water supplied to a boiler; heating a crude aromatic carboxylic acid using the high-pressure steam, whereby the high pressure steam is condensed to form a high-pressure condensate; and purifying the crude aromatic carboxylic acid to form a purified aromatic carboxylic acid. The boiler feed water includes at least a portion of the high-pressure condensate and makeup boiler feed water from at least one additional source.
    Type: Application
    Filed: December 30, 2014
    Publication date: July 2, 2015
    Applicant: BP Corporation North America Inc.
    Inventors: Fred T. Clark, Thomas M. Bartos, Allen Nelson