Patents by Inventor Karen S. Gushurst

Karen S. Gushurst 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).

  • Forms of rifaximin and uses thereof
    Patent number: 9700545
    Abstract: The present invention relates to Rifaximin amorphous forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: July 11, 2017
    Assignee: Salix Pharmaceuticals, Ltd
    Inventors: Karen S. Gushurst, Donglai Yang, Melanie Janelle Bevill, Nathan Carl Schultheiss, Giuseppe Claudio Viscomi
  • Forms of rifaximin and uses thereof
    Patent number: 9546183
    Abstract: The present invention relates to Rifaximin polymorphic forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: January 17, 2017
    Assignee: Salix Pharmaceuticals, Ltd
    Inventors: Karen S. Gushurst, Donglai Yang, Petinka Vlahova, Jeffrey S. Stults
  • FORMS OF RIFAXIMIN AND USES THEREOF
    Publication number: 20160317507
    Abstract: The present invention relates to Rifaximin amorphous forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Application
    Filed: April 28, 2016
    Publication date: November 3, 2016
    Inventors: Karen S. Gushurst, Donglai Yang, Melanie Janelle Bevill, Nathan Carl Schultheiss, Giuseppe Claudio Viscomi
  • FORMS OF RIFAXIMIN AND USES THEREOF
    Publication number: 20160200738
    Abstract: The present invention relates to Rifaximin polymorphic forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Application
    Filed: January 14, 2016
    Publication date: July 14, 2016
    Inventors: Karen S. Gushurst, Donglai Yang, Petinka Vlahova, Jeffrey S. Stults
  • Forms of rifaximin and uses thereof
    Patent number: 9359357
    Abstract: The present invention relates to Rifaximin amorphous forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: June 7, 2016
    Assignees: Salix Pharmaceuticals, Ltd., Alfa Wassermann S.P.A.
    Inventors: Karen S. Gushurst, Donglai Yang, Melanie Janelle Bevill, Nathan Carl Schultheiss, Giuseppe Claudio Viscomi
  • Forms of rifaximin and uses thereof
    Patent number: 9273066
    Abstract: The present invention relates to Rifaximin polymorphic forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: March 1, 2016
    Assignee: Salix Pharmaceuticals, Inc.
    Inventors: Karen S. Gushurst, Donglai Yang, Petinka Vlahova, Jeffrey S. Stults
  • Forms of rifaximin and uses thereof
    Patent number: 9181274
    Abstract: The present invention relates to Rifaximin amorphous forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: November 10, 2015
    Inventors: Karen S. Gushurst, Donglai Yang, Melanie Janelle Bevill, Nathan Carl Schultheiss, Giuseppe Claudio Viscomi
  • FORMS OF RIFAXIMIN AND USES THEREOF
    Publication number: 20150299199
    Abstract: The present invention relates to Rifaximin amorphous forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Application
    Filed: December 23, 2014
    Publication date: October 22, 2015
    Inventors: Karen S. Gushurst, Donglai Yang, Melanie Janelle Bevill, Nathan Carl Schultheiss, Giuseppe Claudio Viscomi
  • Forms of rifaximin and uses thereof
    Patent number: 9034892
    Abstract: The present invention relates to Rifaximin polymorphic, salt, hydrate, and amorphous forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: May 19, 2015
    Assignee: Salix Pharmaceuticals, Inc.
    Inventors: Karen S. Gushurst, Donglai Yang, Petinka Vlahova, Jeffrey S. Stults
  • FORMS OF RIFAXIMIN AND USES THEREOF
    Publication number: 20140179916
    Abstract: The present invention relates to Rifaximin polymorphic forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Application
    Filed: October 24, 2013
    Publication date: June 26, 2014
    Inventors: Karen S. Gushurst, Donglai Yang, Petinka Vlahova, Jeffrey S. Stults
  • Forms of rifaximin and uses thereof
    Patent number: 8754098
    Abstract: The present invention relates to Rifaximin polymorphic, salt, hydrate, and amorphous forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: June 17, 2014
    Assignee: Salix Pharmaceuticals, Ltd.
    Inventors: Karen S. Gushurst, Donglai Yang, Melanie Janelle Bevill, Nathan Carl Schultheiss, Petinka Vlahova, Jeffrey S. Stults, Travis L. Houston
  • FORMS OF RIFAXIMIN AND USES THEREOF
    Publication number: 20140141081
    Abstract: The present invention relates to Rifaximin polymorphic, salt, hydrate, and amorphous forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Application
    Filed: June 27, 2013
    Publication date: May 22, 2014
    Inventors: Karen S. Gushurst, Donglai Yang, Petinka Vlahova, Jeffrey S. Stults
  • FORMS OF RIFAXIMIN AND USES THEREOF
    Publication number: 20140011828
    Abstract: The present invention relates to Rifaximin amorphous forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Application
    Filed: October 3, 2012
    Publication date: January 9, 2014
    Inventors: Karen S. Gushurst, Donglai Yang, Melanie Janelle Bevill, Nathan Carl Schultheiss, Giuseppe Claudio Viscomi
  • Forms of rifaximin and uses thereof
    Patent number: 8569326
    Abstract: The present invention relates to Rifaximin polymorphic forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: October 29, 2013
    Assignee: Salix Pharmaceuticals, Ltd.
    Inventors: Karen S. Gushurst, Donglai Yang, Petinka Vlahova, Jeffrey S. Stults
  • Crystalline forms of oxymorphone hydrochloride
    Patent number: 8563571
    Abstract: The present invention is directed to crystalline forms of oxymorphone hydrochloride.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: October 22, 2013
    Assignee: Noramco, Inc.
    Inventors: Karen S. Gushurst, Leonard J. Chyall, Lien H. Koztecki, Brenton Skylar Wolfe
  • Forms of rifaximin and uses thereof
    Patent number: 8486956
    Abstract: The present invention relates to Rifaximin polymorphic forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: July 16, 2013
    Assignee: Salix Pharmaceuticals, Ltd
    Inventors: Karen S. Gushurst, Donglai Yang, Petinka Vlahova, Jeffrey S. Stults
  • FORMS OF RIFAXIMIN AND USES THEREOF
    Publication number: 20130066079
    Abstract: The present invention relates to Rifaximin polymorphic, salt, hydrate, and amorphous forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Application
    Filed: August 23, 2012
    Publication date: March 14, 2013
    Applicant: Salix Pharmaceuticals, Ltd.
    Inventors: Karen S. Gushurst, Donglai Yang, Melanie Roe, Nathan Schultheiss, Petinka Vlahova, Jeffrey S. Stults, Travis L. Houston
  • FORMS OF RIFAXIMIN AND USES THEREOF
    Publication number: 20120316334
    Abstract: The present invention relates to Rifaximin polymorphic forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Application
    Filed: August 16, 2012
    Publication date: December 13, 2012
    Applicant: SALIX PHARMACEUTICALS, LTD
    Inventors: Karen S. Gushurst, Donglai Yang, Petinka Vlahova, Jeffrey S. Stults
  • FORMS OF RIFAXIMIN AND USES THEREOF
    Publication number: 20120076857
    Abstract: The present invention relates to Rifaximin polymorphic, salt, hydrate, and amorphous forms, to their use in medicinal preparations and to therapeutic methods using them.
    Type: Application
    Filed: September 6, 2011
    Publication date: March 29, 2012
    Applicant: SALIX PHARMACEUTICALS, LTD.
    Inventors: Karen S. Gushurst, Donglai Yang, Melanie Roe, Nathan Schultheiss, Petinka Vlahova, Jeffrey S. Stults, Travis L. Houston
  • CRYSTALLINE FORMS OF OXYMORPHONE HYDROCHLORIDE
    Publication number: 20120022093
    Abstract: The present invention is directed to crystalline forms of oxymorphone hydrochloride.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 26, 2012
    Inventors: Karen S. Gushurst, Leonard J. Chyall, Lien H. Koztecki, Brenton Skylar Wolfe