Patents by Inventor Stephen M. Tieri

Stephen M. Tieri 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).

  • Publication number: 20150080615
    Abstract: A process for recovering alcohol from a fatty acid and/or diacid alcohol ester using water in an equal or lesser amount than oil on a mass basis. The process uses multiple reactors with separation of the alcohol product of hydrolysis between successive reactors. The use of low amounts of water allows recovery of the alcohol with a lower evaporation requirement, thus making a more energy efficient process.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 19, 2015
    Inventors: STUART B. FERGUSSON, LARIN GODFROY, MICHAEL CHARLES GRADY, DAVID F. KRAYNIE, WILLIAM D. PARTEN, STEPHEN M. TIERI
  • Patent number: 7524995
    Abstract: A continuous process for producing hexafluoroisopropanol is provided which comprises contacting hexafluoroacetone with hexafluoroisopropanol and hydrogen to produce a liquid feed stream; introducing the liquid feed stream to a reactor containing an immobilized hydrogenation catalyst to convert the hexafluoroacetone to hexafluoroisopropanol and provide a product stream; and recovering at least a portion of the hexafluoroisopropanol from the product stream. Preferably a portion of the product stream is recycled. The reactor can be a packed bed or stirred tank reactor.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: April 28, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Stephen M. Tieri, John Joseph Hagedom, James Arnold Schultz, Tiberiu M. Leib, Susanne Hawthorne Wolff, Sourav K. Sengupta, Gregory Paul Shankwitz