Patents by Inventor George Diffendall

George Diffendall 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: 20060070918
    Abstract: The invention provides a method to extend the utilization of a catalyst in a multistage reaction system, provided that a primary reaction and a secondary (or more) catalyst-poisoning reaction occur on the same catalyst, and the rate of the secondary (or more), catalyst-poisoning reaction is faster than the rate of the primary reaction.
    Type: Application
    Filed: April 29, 2005
    Publication date: April 6, 2006
    Inventors: Mayis Seapan, George Diffendall
  • Publication number: 20050277792
    Abstract: The invention discloses a hydrogenation process for removing impurities and controlling acid for use in downstream processing of biochemically-derived 1,3-propanediol. Preferably, the biochemically-derived 1,3-propanediol, before the contacting, has an initial color and, after the contracting, has a color that is lower than the initial color.
    Type: Application
    Filed: August 12, 2005
    Publication date: December 15, 2005
    Inventors: Mayis Seapan, George Diffendall, Robert Trotter, Tyler Ames, F. Gallagher
  • Publication number: 20050272962
    Abstract: Disclosed is a process comprising contacting chemical 1,3-propanediol with hydrogen in the presence of a hydrogenation catalyst. Preferably, the chemical 1,3-propanediol, before the contacting has an initial color and, after the contacting, has a color that is lower than the initial color.
    Type: Application
    Filed: August 12, 2005
    Publication date: December 8, 2005
    Inventors: Hari Sunkara, Mayis Seapan, George Diffendall, Tyler Ames