Patents by Inventor Stephen Withers

Stephen Withers 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: 20230095027
    Abstract: A method is disclosed. The method includes providing an imaging apparatus, recording image data of an imaging location using the imaging apparatus, displaying the image data to a user via a user device, selecting an image object from the image data based on a selection criteria, and determining whether or not a selection criteria error of the image object is to be checked. The method also includes displaying a bounding shape, which bounds the image object, to the user via the user device when the selection criteria error is to be checked, prompting the user to enter user input indicating whether or not the selection criteria error is present, and storing data of the image object in a cache when the user input indicates that the selection criteria error is present.
    Type: Application
    Filed: September 24, 2021
    Publication date: March 30, 2023
    Inventors: Chao-Ming Yen, David Selinger, Stephen Withers, Praveen Nataraj, Patrick Darrow, Travis Richardson, Yu-Chung Cheng, Jui-Chi Tang
  • Publication number: 20200024628
    Abstract: The present invention relates to a novel endoglycoceramidase whose hydrolytic activity has been substantially reduced or eliminated, such that the enzyme is useful for synthesis of glycolipids from a monosaccharide or oligosaccharide and a ceramide. More specifically, the endoglycoceramidase is a mutant version of a naturally occurring endoglycoceramidase, preferably comprising a mutation within the active site or the nucleophilic site of the enzyme and more preferably comprising a substitution mutation of the Glu residue within the active site or the nucleophilic site. Also disclosed are a method for generating the mutant endoglycoceramidase and a method for enzymatically synthesizing glycolipids using this mutant enzyme.
    Type: Application
    Filed: May 17, 2019
    Publication date: January 23, 2020
    Inventors: Karl F. Johnson, Shawn DeFrees, Stephen Withers, Mark Vaughan
  • Patent number: 10294504
    Abstract: The present invention relates to a novel endoglycoceramidase whose hydrolytic activity has been substantially reduced or eliminated, such that the enzyme is useful for synthesis of glycolipids from a monosaccharide or oligosaccharide and a ceramide. More specifically, the endoglycoceramidase is a mutant version of a naturally occurring endoglycoceramidase, preferably comprising a mutation within the active site or the nucleophilic site of the enzyme and more preferably comprising a substitution mutation of the Glu residue within the active site or the nucleophilic site. Also disclosed are a method for generating the mutant endoglycoceramidase and a method for enzymatically synthesizing glycolipids using this mutant enzyme.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: May 21, 2019
    Assignees: La Jolla Pharmaceutical Company, The University of British Columbia
    Inventors: Karl F. Johnson, Shawn Defrees, Stephen Withers, Mark Vaughan
  • Publication number: 20180282293
    Abstract: Compounds having a structure of Formula I and compositions comprising these compounds are provided. Uses of such compounds and compositions are provided for treatment or prophylaxis of viral infection. In particular, compounds and compositions may be for use in the treatment or prophylaxis of viral influenza.
    Type: Application
    Filed: October 30, 2017
    Publication date: October 4, 2018
    Inventors: Stephen Withers, Andrew Graham Watts, Jin Hyo Kim, Tom Wennekes
  • Patent number: 9949945
    Abstract: Equatorial 2,3-fluorinated glycosides compounds of formula (I) useful for the treatment or prophylaxis of viral infection, particularly viral influenza, the methods for their preparation, and their pharmaceutical compositions are provided. The therapeutic effect is achieved via inhibition of viral neuraminidases.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: April 24, 2018
    Assignee: The University of British Columbia
    Inventors: Stephen Withers, Hongming Chen, Ricardo Resende, Jennifer Lois Breschkin
  • Publication number: 20180057474
    Abstract: Compounds having a structure of Formula I and compositions comprising these compounds are provided. Uses of such compounds and compositions are provided for treatment or prophylaxis of viral infection. In particular, compounds and compositions may be for use in the treatment or prophylaxis of viral influenza.
    Type: Application
    Filed: February 16, 2017
    Publication date: March 1, 2018
    Inventors: Stephen Withers, Andrew Graham Watts, Jin Hyo Kim, Tom Wennekes
  • Patent number: 9834534
    Abstract: Compounds having a structure of Formula I and compositions comprising these compounds are provided. Uses of such compounds and compositions are provided for treatment or prophylaxis of viral infection. In particular, compounds and compositions may be for use in the treatment or prophylaxis of viral influenza.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: December 5, 2017
    Assignee: The University of British Columbia
    Inventors: Stephen Withers, Andrew Graham Watts, Jin Hyo Kim, Tom Wennekes
  • Publication number: 20170165223
    Abstract: Equatorial 2,3-fluorinated glycosides compounds of formula (I) useful for the treatment or prophylaxis of viral infection, particularly viral influenza, the methods for their preparation, and their pharmaceutical compositions. The therapeutic effect is achieved via inhibition of viral neuraminidases.
    Type: Application
    Filed: August 22, 2016
    Publication date: June 15, 2017
    Inventors: Stephen Withers, Hongming Chen, Ricardo Resende, Jennifer Lois Breschkin
  • Patent number: 9637465
    Abstract: Equatorial 2,3-fluorinated glycosides compounds of formula (I) useful for the treatment or prophylaxis of viral infection, particularly viral influenza, the methods for their preparation, and their pharmaceutical compositions. The therapeutic effect is achieved via inhibition of viral neuraminidases.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: May 2, 2017
    Assignee: The University of British Columbia
    Inventors: Stephen Withers, Hongming Chen, Ricardo Resende, Jennifer Lois Breschkin
  • Patent number: 9604954
    Abstract: Compounds having a structure of Formula I and compositions comprising these compounds are provided. Uses of such compounds and compositions are provided for treatment or prophylaxis of viral infection. In particular, compounds and compositions may be for use in the treatment or prophylaxis of viral influenza.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: March 28, 2017
    Assignee: The University of British Columbia
    Inventors: Stephen Withers, Andrew Graham Watts, Jin Hyo Kim, Tom Wennekes
  • Publication number: 20170022177
    Abstract: Compounds having a structure of Formula I and compositions comprising these compounds are provided. Uses of such compounds and compositions are provided for treatment or prophylaxis of viral infection. In particular, compounds and compositions may be for use in the treatment or prophylaxis of viral influenza.
    Type: Application
    Filed: May 23, 2016
    Publication date: January 26, 2017
    Inventors: Stephen Withers, Andrew Graham Watts, Jin Hyo Kim, Tom Wennekes
  • Patent number: 9382284
    Abstract: Compounds having a structure of Formula I and compositions comprising these compounds are provided. Uses of such compounds and compositions are provided for treatment or prophylaxis of viral infection. In particular, compounds and compositions may be for use in the treatment or prophylaxis of viral influenza.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: July 5, 2016
    Assignee: The University of British Columbia
    Inventors: Stephen Withers, Andrew Graham Watts, Jin Hyo Kim, Tom Wennekes
  • Publication number: 20160068501
    Abstract: Compounds having a structure of Formula I and compositions comprising these compounds are provided. Uses of such compounds and compositions are provided for treatment or prophylaxis of viral infection. In particular, compounds and compositions may be for use in the treatment or prophylaxis of viral influenza.
    Type: Application
    Filed: November 19, 2015
    Publication date: March 10, 2016
    Inventors: Stephen Withers, Andrew Graham Watts, Jin Hyo Kim, Tom Wennekes
  • Publication number: 20160032342
    Abstract: The present invention relates to a novel endoglycoceramidase whose hydrolytic activity has been substantially reduced or eliminated, such that the enzyme is useful for synthesis of glycolipids from a monosaccharide or oligosaccharide and a ceramide. More specifically, the endoglycoceramidase is a mutant version of a naturally occurring endoglycoceramidase, preferably comprising a mutation within the active site or the nucleophilic site of the enzyme and more preferably comprising a substitution mutation of the Glu residue within the active site or the nucleophilic site. Also disclosed are a method for generating the mutant endoglycoceramidase and a method for enzymatically synthesizing glycolipids using this mutant enzyme.
    Type: Application
    Filed: June 29, 2015
    Publication date: February 4, 2016
    Applicants: Seneb Biosciences, Inc., The University of British Columbia
    Inventors: Karl F. JOHNSON, Shawn DEFREES, Stephen WITHERS, Mark VAUGHAN
  • Patent number: 9221859
    Abstract: Compounds having a structure of Formula I and compositions comprising these compounds are provided. Uses of such compounds and compositions are provided for treatment or prophylaxis of viral infection. In particular, compounds and compositions may be for use in the treatment or prophylaxis of viral influenza.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: December 29, 2015
    Assignee: The University of British Columbia
    Inventors: Stephen Withers, Andrew Graham Watts, Jin Hyo Kim, Tom Wennekes
  • Publication number: 20150216838
    Abstract: Compounds having a structure of Formula I and compositions comprising these compounds are provided. Uses of such compounds and compositions are provided for treatment or prophylaxis of viral infection. In particular, compounds and compositions may be for use in the treatment or prophylaxis of viral influenza.
    Type: Application
    Filed: November 5, 2014
    Publication date: August 6, 2015
    Inventors: Stephen Withers, Andrew Graham Watts, Jin Hyo Kim, Tom Wennekes
  • Patent number: 9068208
    Abstract: The present invention relates to a novel endoglycoceramidase whose hydrolytic activity has been substantially reduced or eliminated, such that the enzyme is useful for synthesis of glycolipids from a monosaccharide or oligosaccharide and a ceramide. More specifically, the endoglycoceramidase is a mutant version of a naturally occurring endoglycoceramidase, preferably comprising a mutation within the active site or the nucleophilic site of the enzyme and more preferably comprising a substitution mutation of the Glu residue within the active site or the nucleophilic site. Also disclosed are a method for generating the mutant endoglycoceramidase and a method for enzymatically synthesizing glycolipids using this mutant enzyme.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: June 30, 2015
    Assignee: Seneb Biosciences, Inc.
    Inventors: Karl F. Johnson, Shawn Defrees, Stephen Withers, Mark Vaughan
  • Publication number: 20150158899
    Abstract: Compounds having a structure of Formula I and compositions comprising these compounds are provided. Uses of such compounds and compositions are provided for treatment or prophylaxis of viral infection. In particular, compounds and compositions may be for use in the treatment or prophylaxis of viral influenza.
    Type: Application
    Filed: July 14, 2014
    Publication date: June 11, 2015
    Inventors: Stephen Withers, Andrew Graham Watts, Jin Hyo Kim, Tom Wennekes
  • Patent number: 8907111
    Abstract: Compounds having a structure of Formula I and compositions comprising these compounds are provided. Uses of such compounds and compositions are provided for treatment or prophylaxis of viral infection. In particular, compounds and compositions may be for use in the treatment or prophylaxis of viral influenza.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: December 9, 2014
    Assignee: The University of British Columbia
    Inventors: Stephen Withers, Andrew Graham Watts, Jin Hyo Kim, Tom Wennekes
  • Publication number: 20140350095
    Abstract: Equatorial 2,3-fluorinated glycosides compounds of formula (I) useful for the treatment or prophylaxis of viral infection, particularly viral influenza, the methods for their preparation, and their pharmaceutical compositions. The therapeutic effect is achieved via inhibition of viral neuraminidases.
    Type: Application
    Filed: January 17, 2013
    Publication date: November 27, 2014
    Inventors: Stephen Withers, Hongming Chen, Ricardo Resende, Jennifer Lois Breschkin