Patents by Inventor Elizabeth M. Waterfield

Elizabeth M. Waterfield 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).

  • ETHYLENE GLYCOL ESTERS AS PHOTOACTIVE AGENTS
    Publication number: 20090203757
    Abstract: New compounds useful in photodynamic therapy are of the formula and their 1,4-diene isomers and the metallated and/or labeled and/or conjugated forms thereof wherein each R1 is independently alkyl (1-6C); each n is independently an integer of 0-6; and R2 is vinyl or a derivative form thereof.
    Type: Application
    Filed: April 23, 2009
    Publication date: August 13, 2009
    Inventors: Ethan D. STERNBERG, David DOLPHIN, Julia G. LEVY, Anna M. RICHTER, David W.C. HUNT, Ashok JAIN, Elizabeth M. WATERFIELD, Ronald E. BOCH, Andrew Norman TOVEY
  • Ethylene glycol esters as photoactive agents
    Patent number: 7122569
    Abstract: New compounds useful in photodynamic therapy are of the formula and their 1,4-diene isomers and the metallated and/or labeled and/or conjugated forms thereof wherein each R1 is independently alkyl (1–6C); each n is independently an integer of 0–6; and R2 is vinyl or a derivative form thereof.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: October 17, 2006
    Assignees: QLT, Inc. and, University of British Columbia
    Inventors: Ethan D. Sternberg, David Dolphin, Julia G. Levy, Anna M. Richter, David W. C. Hunt, Ashok Jain, Elizabeth M. Waterfield, Ronald E. Boch, Andrew Norman Tovey
  • Ethylene glycol esters as photoactive agents
    Patent number: 6756396
    Abstract: New compounds useful in photodynamic therapy are of the formula and their 1,4-diene isomers and the metallated and/or labeled and/or conjugated forms thereof wherein each R1 is independently alkyl (1-6C); each n is independently an integer of 0-6; and R2 is vinyl or a derivative form thereof.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: June 29, 2004
    Assignees: QLT Inc., The University of British Columbia
    Inventors: Ethan Sternberg, David Dolphin, Julia G. Levy, Anna M. Richter, David W. C. Hunt, Ashok Jain, Elizabeth M. Waterfield, Ronald E. Boch
  • Ethylene glycol esters as photoactive agents
    Patent number: 6153639
    Abstract: New compounds useful in photodynamic therapy are of the formula ##STR1## and their 1,4-diene isomers and the metallated and/or labeled and/or conjugated forms thereofwherein each R.sup.1 is independently alkyl (1-6C);each n is independently an integer of 0-6; andR.sup.2 is vinyl or a derivative form thereof.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: November 28, 2000
    Assignees: QLT PhotoTherapeutices Inc., The University of British Columbia
    Inventors: Ethan Sternberg, David Dolphin, Julia G. Levy, Anna M. Richter, David W. C. Hunt, Ashok Jain, Elizabeth M. Waterfield, Ronald E. Boch