Patents by Inventor HELEN BURT

HELEN BURT 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).

  • Patent number: 9186410
    Abstract: Herein are provided derivatized hyperbranched polyglycerols (“dHPGs”). The dHPG comprises a core comprising a hyperbranched polyglycerol derivatized with C1C20 alkyl chains and a shell comprising at least one hydrophilic substituent bound to hydroxyl groups of the core, wherein the hyperbranched polyglycerol comprises from about 1 to about 200 moles of the at least one hydrophilic substituent. The dHPGs are for use as agents for the delivery of a drug or other biologically active moiety to the urinary tract, the digestive tract, the airways, the vaginal cavity and cervix and the peritoneal cavity to treat indications such as cancer, which may be useful in the treatment of or the manufacture of a medicament, in the preparation, of a pharmaceutical composition for the treatment of cancer, as a pre-treatment or co-treatment to improve drug uptake in a tissue. Furthermore, there are provided methods of making dHPGs.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: November 17, 2015
    Assignees: The University of British Columbia, Centre for Drug Research and Development
    Inventors: Helen Burt, Donald Brooks, Jayachandran Kizhakkedathu, Richard Liggins, Dechi Guan, Lu Ye, Clement Mugabe, Alan So, Martin E. Gleave, John K. Jackson, Rajesh Kumar Kainthan
  • Publication number: 20080020063
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and taxol. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: July 30, 2007
    Publication date: January 24, 2008
    Inventors: William HUNTER, Lindsay Machan, A. Arsenault, Helen Burt, John Jackson, Stephen Dordunoo
  • Publication number: 20070298123
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and taxol. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: July 30, 2007
    Publication date: December 27, 2007
    Inventors: William Hunter, Lindsay Machan, A. Arsenault, Helen Burt, John Jackson, Stephen Dordunoo
  • Publication number: 20070238697
    Abstract: Compositions, methods and the like comprising fucans such as fucoidan to treat surgical adhesions, arthritis, and psoriasis.
    Type: Application
    Filed: December 5, 2006
    Publication date: October 11, 2007
    Inventors: John Jackson, Helen Burt
  • Publication number: 20070003629
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and paclitaxel. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: May 18, 2006
    Publication date: January 4, 2007
    Applicant: ANGIOTECH PHARMACEUTICALS, INC.
    Inventors: William Hunter, Lindsay Machan, A. Arsenault, Helen Burt, John Jackson, Stephen Dordunoo
  • Publication number: 20070003630
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and paclitaxel. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: May 18, 2006
    Publication date: January 4, 2007
    Applicant: ANGIOTECH PHARMACEUTICALS, INC.
    Inventors: William Hunter, Lindsay Machan, A. Larry-Arsenault, Helen Burt, John Jackson, Stephen Dordunoo
  • Publication number: 20060240113
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and taxol. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: May 18, 2006
    Publication date: October 26, 2006
    Applicant: ANGIOTECH PHARMACEUTICALS, INC.
    Inventors: William Hunter, Lindsay Machan, A. Arsenault, Helen Burt, John Jackson, Stephen Dordunoo
  • Publication number: 20060189785
    Abstract: This invention provides compositions comprising a hydrophobic drug, a biocompatible micelle forming polymer, and a biocompatible low molecular weight, water-soluble polymer. Also provided are devices for injection of such compositions and for the use of such compositions to form hydrophobic drug containing micelles within the body of a patient.
    Type: Application
    Filed: December 6, 2005
    Publication date: August 24, 2006
    Inventors: John Jackson, Jason Zastre, Helen Burt
  • Publication number: 20060127445
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and paclitaxel. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: June 14, 2005
    Publication date: June 15, 2006
    Applicant: ANGIOTECH PHARMACEUTICALS, INC.
    Inventors: William Hunter, Lindsay Machan, A. Arsenault, Helen Burt, John Jackson, Stephen Dordunoo
  • Publication number: 20060121117
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and paclitaxel. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: January 17, 2006
    Publication date: June 8, 2006
    Applicant: ANGIOTECH PHARMACEUTICALS, INC.
    Inventors: William Hunter, Lindsay Machan, A. Arsenault, Helen Burt, John Jackson, Stephen Dordunoo
  • Publication number: 20050208137
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and taxol. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: October 7, 2004
    Publication date: September 22, 2005
    Applicant: ANGIOTECH PHARMACEUTICALS, INC.
    Inventors: William Hunter, Lindsay Machan, A. Arsenault, Helen Burt, John Jackson, Stephen Dordunoo
  • Publication number: 20050123605
    Abstract: The present invention provides compositions comprising an anti-angiogenic factor, and a polymeric carrier. Representative examples of anti-angiogenic factors include Anti-Invasive Factor, Retinoic acids and derivatives thereof, and taxol. Also provided are methods for embolizing blood vessels, and eliminating biliary, urethral, esophageal, and tracheal/bronchial obstructions.
    Type: Application
    Filed: October 7, 2004
    Publication date: June 9, 2005
    Inventors: William Hunter, Lindsay Machan, A. Larry-Arsenault, Helen Burt, John Jackson, Stephen Dordunoo
  • Publication number: 20050119216
    Abstract: Compositions, methods and the like comprising fucans such as fucoidan to treat surgical adhesions, arthritis, and psoriasis.
    Type: Application
    Filed: October 5, 2004
    Publication date: June 2, 2005
    Inventors: John Jackson, Helen Burt
  • Publication number: 20050074496
    Abstract: Compositions, methods and the like comprising fucans such as fucoidan to treat surgical adhesions, arthritis, and psoriasis.
    Type: Application
    Filed: September 13, 2004
    Publication date: April 7, 2005
    Inventors: John Jackson, Helen Burt
  • Publication number: 20050042293
    Abstract: Biodegradable polymeric implants can provide a safe and efficient means to deliver drugs in the treatment of various diseases. Although a polymeric drug delivery system can be implanted as a solid device within a subject, it is also possible to administer such a system as an injectable liquid which solidifies in vivo. An improved formulation of a polymeric drug delivery system comprises a water insoluble copolymer that is a solid or wax at 37° C., a water soluble polymer that is a liquid at 25° C., and a hydrophobic drug. These drug delivery systems can be administered by injection, and do not require the use of a toxic curing agent or inconvenient temperature manipulations.
    Type: Application
    Filed: November 25, 2003
    Publication date: February 24, 2005
    Applicants: The University of British Columbia, Angiotech Pharmaceuticals, Inc.
    Inventors: John Jackson, Xichen Zhang, Helen Burt
  • Publication number: 20040224914
    Abstract: A therapeutic method for treatment of non-cancerous angiogenesis-related diseases involves administering a therapeutically effective amount of a composition effective to reduce the effective amount of clusterin in the individual. Preferred therapeutic compositions contain antisense oligonucleotides which reduce the effective amount of clusterin.
    Type: Application
    Filed: April 19, 2004
    Publication date: November 11, 2004
    Applicant: The University of British Columbia
    Inventors: John K. Jackson, Helen Burt, Christopher Springate, Martin Gleave
  • Publication number: 20040220131
    Abstract: Cancerous angiogenesis-related diseases treated, and angiogenesis is reduced by administration of a therapeutically effective amount of a composition effective to reduce the effective amount of clusterin in an individual. Preferred therapeutic compositions comprise antisense oligonucleotides which reduce the effective amount of clusterin.
    Type: Application
    Filed: April 19, 2004
    Publication date: November 4, 2004
    Applicant: The University of British Columbia
    Inventors: John K. Jackson, Helen Burt, Christopher Springate, Martin Gleave
  • Publication number: 20020164374
    Abstract: Biodegradable polymeric implants can provide a safe and efficient means to deliver drugs in the treatment of various diseases. Although a polymeric drug delivery system can be implanted as a solid device within a subject, it is also possible to administer such a system as an injectable liquid which solidifies in vivo. An improved formulation of a polymeric drug delivery system comprises a water insoluble copolymer that is a solid or wax at 37° C., a water soluble polymer that is a liquid at 25° C., and a hydrophobic drug. These drug delivery systems can be administered by injection, and do not require the use of a toxic curing agent or inconvenient temperature manipulations.
    Type: Application
    Filed: October 28, 1998
    Publication date: November 7, 2002
    Inventors: JOHN JACKSON, XICHEN ZHANG, HELEN BURT