Patents by Inventor Mary E. Rezac

Mary E. Rezac 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).

  • Increasing rate of enzyme catalyzed equilibrium reactions
    Patent number: 7838267
    Abstract: A method of increasing the rate of conversion of reactants to reaction product of enzyme catalyzed, reversible, i.e., equilibrium, reactions having water or methanol as byproduct includes removing water and/or methanol from the reaction mass during reaction by permeation of the reaction mass through a selectively permeable perfluorinated polymer or copolymer membrane.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: November 23, 2010
    Assignees: CMS Technologies Holdings, Inc., Kansas State University Research Foundation
    Inventors: Stuart Nemser, Mary E. Rezac
  • Dehydrogenation using dehydrogenation catalyst and polymer-porous solid composite membrane
    Patent number: 5430218
    Abstract: Light paraffinic hydrocarbons are catalytically dehydrogenated using a dehydrogenation catalyst and a polymer-porous solid composite membrane capable of separating hydrogen from the effluent of the dehydrogenation reaction. The polymer-porous solid composite membrane may be, e.g., a porous ceramic material coated with a fluorinated dianhydride-diamine, a fluorinated polycarbonate or fluorinated polysulfone.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: July 4, 1995
    Assignees: Chevron U.S.A. Inc., Board of Regents, University of Texas System
    Inventors: Stephen J. Miller, Mary E. Rezac, William J. Koros
  • Removal of basic impurities from olefin streams
    Patent number: 5057642
    Abstract: Basic impurities, in particular ammonia, are removed from monoolefin-containing feeds, in particular an isobutylene-containing feed, by contacting with a hydrated acidic clay.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: October 15, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Marvin M. Johnson, Gerhard P. Nowack, Mary E. Rezac