Patents by Inventor Ethan Sternberg
Ethan Sternberg 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).
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Publication number: 20070191329Abstract: 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: ApplicationFiled: September 20, 2006Publication date: August 16, 2007Applicant: QLT Inc.Inventors: Ethan Sternberg, David Dolphin, Julia Levy, Anna Richter, David Hunt, Ashok Jain, Elizabeth Waterfield, Ronald Boch, Andrew Tovey
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Publication number: 20050032769Abstract: 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: ApplicationFiled: April 14, 2004Publication date: February 10, 2005Inventors: Ethan Sternberg, David Dolphin, Julia Levy, Anna Richter, David Hunt, Ashok Jain, Elizabeth Waterfield, Ronald Boch, Andrew Tovey
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Patent number: 6756396Abstract: 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: GrantFiled: June 6, 2000Date of Patent: June 29, 2004Assignees: QLT Inc., The University of British ColumbiaInventors: Ethan Sternberg, David Dolphin, Julia G. Levy, Anna M. Richter, David W. C. Hunt, Ashok Jain, Elizabeth M. Waterfield, Ronald E. Boch
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Patent number: 6153639Abstract: 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: GrantFiled: May 17, 1999Date of Patent: November 28, 2000Assignees: QLT PhotoTherapeutices Inc., The University of British ColumbiaInventors: Ethan Sternberg, David Dolphin, Julia G. Levy, Anna M. Richter, David W. C. Hunt, Ashok Jain, Elizabeth M. Waterfield, Ronald E. Boch
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Patent number: 5929105Abstract: 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: GrantFiled: June 1, 1998Date of Patent: July 27, 1999Assignees: QLTPhoto Therapeutics, Inc., The University of British ColumbiaInventors: Ethan Sternberg, David Dolphin, Julia G. Levy, Anna M. Richter, David W. C. Hunt, Ashok Jain
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Patent number: 5399583Abstract: A group of hydro-monobenzoporphyrins "green porphyrins" (Gp) having absorption maxima in the range of 670-780 nanometers is useful in treating disorders or conditions which are subject to hematoporphyrin derivative (HPD) treatment in the presence of light, or in treating virus, cells and tissues generally to destroy unwanted targets. The use of the Gp of the invention permits the irradiation for therapy to use wavelengths other than those absorbed by blood. The Gp of the invention may also be conjugated to ligands specific for receptor or to specific immunoglobulins or fragments thereof to target specific tissues or cells for the radiation treatment. Use of these materials permits lower levels of drug to be used, thus preventing side reactions which might destroy normal tissues.Type: GrantFiled: January 25, 1994Date of Patent: March 21, 1995Assignee: The University of British ColumbiaInventors: Julia G. Levy, David Dolphin, Jack J. Chow, Ethan Sternberg
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Patent number: 5283255Abstract: A group of hydro-monobenzoporphyrins "green porphyrins" (Gp) having absorption maxima in the range of 670-780 nanometers is useful in treating disorders or conditions which are subject to hematoporphyrin derivative (HPD) treatment in the presence of light, or in treating virus, cells and tissues generally to destroy unwanted targets. The use of the Gp of the invention permits the irradiation for therapy to use wavelengths other than those absorbed by blood. The Gp of the invention may also be conjugated to ligands specific for receptor or to specific immunoglobulins or fragments thereof to target specific tissues or cells for the radiation treatment. Use of these materials permits lower levels of drug to be used, thus preventing side reactions which might destroy normal tissues.Type: GrantFiled: September 11, 1992Date of Patent: February 1, 1994Assignee: The University of British ColumbiaInventors: Julia G. Levy, David Dolphin, Jack J. Chow, Ethan Sternberg
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Patent number: 5171749Abstract: A group of hydro-monobenzoporphyrins "green porphyrins" (Gp) having absorption maxima in the range of 670-780 nanometers is useful in treating disorders or conditions which are subject to hematoporphyrin derivative (HPD) treatment in the presence of light, or in treating virus, cells and tissues generally to destroy unwanted targets. The use of the Gp of the invention permits the irradiation for therapy to use wavelengths other than those absorbed by blood. The Gp of the invention may also be conjugated to ligands specific for receptor or to specific immunoglobulins or fragments thereof to target specific tissues or cells for the radiation treatment. Use of these materials permits lower levels of drug to be used, thus preventing side reactions which might destroy normal tissues.Type: GrantFiled: June 20, 1991Date of Patent: December 15, 1992Assignee: University of British ColumbiaInventors: Julia G. Levy, David Dolphin, Jack J. Chow, Ethan Sternberg
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Patent number: 5095030Abstract: A group of hydro-monobenzoporphyrins "green porphyrins" (Gp) having absorption maxima in the range of 670-780 nanometers is useful in treating disorders or conditions which are subject to hematoporphyrin derivative (HPD) treatment in the presence of light, or in treating virus, cells and tissues generally to destroy unwanted targets. The use of the Gp of the invention permits the irradiation to use wavelengths other than those absorbed by blood. The Gp of the invention may also be conjugated to ligands specific for receptor or to specific immunoglobulins or fragments thereof to target specific tissues or cells for the radiation treatment. Use of these materials permits lower levels of drug to be used, thus preventing side reactions which might destroy normal tissues.Type: GrantFiled: September 28, 1989Date of Patent: March 10, 1992Assignee: University of British ColumbiaInventors: Julia G. Levy, David Dolphin, Jack K. Chow, Ethan Sternberg
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Patent number: 4920143Abstract: A group of hydro-monobenzoporphyrins "green porphyrins" (Gp) having absorption maxima in the range of 670-780 nanometers is useful in treating disorders or conditions which are subject to hematoporphyrin derivative (HPD) treatment in the presence of light, or in treating virus, cells and tissues generally to destroy unwanted targets. The use of the Gp of the invention permits the irradiation to use wavelengths other than those absorbed by blood. The Gp of the invention may also be conjugated to ligands specific for receptor or to specific immunoglobulins or fragments thereof to target specific tissues or cells for the radiation treatment. Use of these materials permits lower levels of drug to be used, thus preventing side reactions which might destroy normal tissues.Type: GrantFiled: July 19, 1988Date of Patent: April 24, 1990Assignee: University of British ColumbiaInventors: Julia G. Levy, David Dolphin, Jack K. Chow, Ethan Sternberg