Patents by Inventor Janice North

Janice North 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: 7479503
    Abstract: Multiple sclerosis and rheumatoid arthritis can be treated effectively using photodynamic therapy. In this protocol, a photoactive compound is administered, allowed to distribute in the effected subject, and the subject is then irradiated to activate the photoactive compound. Alternatively, the blood of a subject to be treated can be subjected to PDT extracorporeally. In the case of rheumatoid arthritis, localized treatment at the joints may also be employed.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: January 20, 2009
    Assignees: QLT Inc., The University of British Columbia
    Inventors: Simon Leong, Agnes How-Ching Chan, David William Carey Hunt, Julia G. Levy, Martin Renke, Janice North
  • Patent number: 7015240
    Abstract: The invention relates to the use of photodynamic therapy (PDT) to treat macular edemas, including DME, CRVO and BRVO. It provides an alternative to photocoagulation and the disadvantages associated therewith.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: March 21, 2006
    Assignee: QLT, Inc.
    Inventors: Janice North, Peter Hnik, H. Andrew Strong
  • Publication number: 20050130952
    Abstract: Multiple sclerosis and rheumatoid arthritis can be treated effectively using photodynamic therapy. In this protocol, a photoactive compound is administered, allowed to distribute in the effected subject, and the subject is then irradiated to activate the photoactive compound. Alternatively, the blood of a subject to be treated can be subjected to PDT extracorporeally. In the case of rheumatoid arthritis, localized treatment at the joints may also be employed.
    Type: Application
    Filed: January 31, 2005
    Publication date: June 16, 2005
    Inventors: Julia Levy, Janice North
  • Patent number: 6849058
    Abstract: Multiple sclerosis and rheumatoid arthritis can be treated effectively using photodynamic therapy. In this protocol, a photoactive compound is administered, allowed to distribute in the effected subject, and the subject is then irradiated to activate the photoactive compound. Alternatively, the blood of a subject to be treated can be subjected to PDT extracorporeally. In the case of rheumatoid arthritis, localized treatment at the joints may also be employed.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: February 1, 2005
    Assignee: QLT, Inc.
    Inventors: Julia G. Levy, Janice North
  • Publication number: 20040019032
    Abstract: The invention relates to the use of photodynamic therapy (PDT) to treat macular edemas, including DME, CRVO and BRVO. It provides an alternative to photocoagulation and the disadvantages associated therewith.
    Type: Application
    Filed: July 17, 2003
    Publication date: January 29, 2004
    Inventors: Janice North, Peter Hnik, H. Andrew Strong
  • Patent number: 6599891
    Abstract: The invention relates to the use of photodynamic therapy (PDT) to treat macular edemas, including DME, CRVO and BRVO. It provides an alternative to photocoagulation and the disadvantages associated therewith.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: July 29, 2003
    Assignee: QLT Inc.
    Inventors: Janice North, Peter Hnik, H. Andrew Strong
  • Publication number: 20030099596
    Abstract: The invention relates to the use of photodynamic therapy (PDT) to treat macular edemas, including DME, CRVO and BRVO. It provides an alternative to photocoagulation and the disadvantages associated therewith.
    Type: Application
    Filed: July 19, 2002
    Publication date: May 29, 2003
    Inventors: Janice North, Peter Hnik, H. Andrew Strong
  • Patent number: 6100290
    Abstract: Multiple sclerosis and rheumatoid arthritis can be treated effectively using photodynamic therapy. In this protocol, a photoactive compound is administered, allowed to distribute in the effected subject, and the subject is then irradiated to activate the photoactive compound. Alternatively, the blood of a subject to be treated can be subjected to PDT extracorporeally. In the case of rheumatoid arthritis, localized treatment at the joints may also be employed.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: August 8, 2000
    Assignees: QLT Inc., The University of British Columbia
    Inventors: Julia G. Levy, Janice North
  • Patent number: 5776966
    Abstract: Treatment with a set of porphyrin compounds using a photodynamic therapy approach is able selectively to lower elevated levels of activated leukocytes in a leukocyte population. This is particularly helpful in subjects containing such elevated levels of T-cell subsets, such as HIV-infected subjects.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: July 7, 1998
    Assignees: University of British Columbia, Quadra Logic Technologies Inc.
    Inventor: Janice North
  • Patent number: 5597722
    Abstract: The present invention provides a method for inactivating pathogens in a body fluid, such as plasma, red cells, platelets, leukocytes, and bone marrow. The present invention minimizes adverse effects caused by the photosensitive agents while retaining the disinfecting activity of such agents and processes. Pursuant to the present invention, prior to irradiating a body fluid including a photoactive drug, the extracellular fluid, which in the case of blood components includes plasma proteins is at least substantially reduced. Additionally, after the irradiation process, the resultant body fluid is prevented from contacting additional extracellular fluid, e.g., plasma proteins, for a predefined period.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: January 28, 1997
    Assignee: Baxter International Inc.
    Inventors: John Chapman, Patricia M. Logan, Herma C. Neyndorff, Janice North
  • Patent number: 5360734
    Abstract: The present invention provides a method for inactivating pathogens in a body fluid, such as plasma, red cells, platelets, leukocytes, and bone marrow. The present invention minimizes adverse effects caused by the photosensitive agents while retaining the disinfecting activity of such agents and processes. Pursuant to the present invention, prior to irradiating a body fluid including a photoactive drug, the extracellular fluid, which in the case of blood components includes plasma proteins is at least substantially reduced. Additionally, after the irradiation process, the resultant body fluid is prevented from contacting additional extracellular fluid, e.g., plasma proteins, for a predefined period.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: November 1, 1994
    Assignees: Baxter International, Inc., Quadra Logic Technologies, Inc.
    Inventors: John Chapman, Patricia M. Logan, Herma C. Neyndorff, Janice North