Patents by Inventor Patricia Ann Relue

Patricia Ann Relue 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).

  • System for simultaneous isomerization and fermentation of sugars
    Patent number: 9856445
    Abstract: Methods and systems for the isomerization and fermentation of xylose and hexose sugars using an immobilized enzyme system capable of sustaining two different pH microenvironments in a single vessel are disclosed. Bilayer particles are dispersed in a mixture comprising an ionic borate source and xylose. The bilayer particles have a first region with a first enzymatic activity comprising xylose isomerase and a pH of 6 or above, and a second region having a second enzymatic activity at an acidic pH.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: January 2, 2018
    Assignee: The University of Toledo
    Inventors: Sasidhar Varanasi, Kripa Rao, Patricia Ann Relue, Dawei Yuan
  • System for Simultaneous Isomerization and Fermentation of Sugars
    Publication number: 20170101613
    Abstract: Methods and systems for the isomerization and fermentation of xylose and hexose sugars using an immobilized enzyme system capable of sustaining two different pH microenvironments in a single vessel are disclosed. Bilayer particles are dispersed in a mixture comprising an ionic borate source and xylose. The bilayer particles have a first region with a first enzymatic activity comprising xylose isomerase and a pH of 6 or above, and a second region having a second enzymatic activity at an acidic pH.
    Type: Application
    Filed: December 22, 2016
    Publication date: April 13, 2017
    Applicant: The University of Toledo
    Inventors: Sasidhar Varanasi, Kripa Rao, Patricia Ann Relue, Dawei Yuan
  • System for simultaneous isomerization and fermentation of sugars
    Patent number: 9528104
    Abstract: Methods and systems for the isomerization and fermentation of xylose and hexose sugars using an immobilized enzyme system capable of sustaining two different pH microenvironments in a single vessel are disclosed. Bilayer particles are dispersed in a mixture comprising an ionic borate source and xylose. The bilayer particles have a first region with a first enzymatic activity comprising xylose isomerase and a pH of 6 or above, and a second region having a second enzymatic activity at an acidic pH.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: December 27, 2016
    Assignee: The University of Toledo
    Inventors: Sasidhar Varanasi, Kripa Rao, Patricia Ann Relue, Dawei Yuan
  • Methods For Fermentation of Xylose and Hexose Sugars
    Publication number: 20130330800
    Abstract: Methods and systems for the isomerization and fermentation of xylose and hexose sugars using an immobilized enzyme system capable of sustaining two different pH microenvironments in a single vessel are disclosed. Bilayer particles are dispersed in a mixture comprising an ionic borate source and xylose. The bilayer particles have a first region with a first enzymatic activity comprising xylose isomerase and a pH of 6 or above, and a second region having a second enzymatic activity at an acidic pH.
    Type: Application
    Filed: July 31, 2013
    Publication date: December 12, 2013
    Applicant: The University of Toledo
    Inventors: Sasidhar Varanasi, Kripa Rao, Patricia Ann Relue, Dawei Yuan
  • Methods for fermentation of xylose and hexose sugars
    Patent number: 8507232
    Abstract: Methods and systems for the isomerization and fermentation of xylose and hexose sugars using an immobilized enzyme system capable of sustaining two different pH microenvironments in a single vessel are disclosed. Bilayer particles are dispersed in a mixture comprising an ionic borate source and xylose. The bilayer particles have an inner of a xylose isomerase having a pH of 6 or above, and an outer region having a second enzymatic activity at an acidic pH.
    Type: Grant
    Filed: January 2, 2009
    Date of Patent: August 13, 2013
    Assignee: The University of Toledo
    Inventors: Sasidhar Varanasi, Kripa Rao, Patricia Ann Relue, Dawei Yuan
  • Methods for Fermentation of Xylose and Hexose Sugars
    Publication number: 20100285552
    Abstract: Methods and systems for the isomerization and/or fermentation of xylose and hexose sugars are disclosed.
    Type: Application
    Filed: January 2, 2009
    Publication date: November 11, 2010
    Applicant: UNIVERSITY OF TOLEDO
    Inventors: Sasidhar Varanasi, Kripa Rao, Patricia Ann Relue, Dawei Yuan