Patents by Inventor Jack K. Chow

Jack K. Chow 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).

  • Wavelength-specific cytotoxic agents
    Patent number: 5095030
    Abstract: 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: Grant
    Filed: September 28, 1989
    Date of Patent: March 10, 1992
    Assignee: University of British Columbia
    Inventors: Julia G. Levy, David Dolphin, Jack K. Chow, Ethan Sternberg
  • Hydro-monobenzoporphyrin wavelength-specific cytotoxic agents
    Patent number: 4920143
    Abstract: 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: Grant
    Filed: July 19, 1988
    Date of Patent: April 24, 1990
    Assignee: University of British Columbia
    Inventors: Julia G. Levy, David Dolphin, Jack K. Chow, Ethan Sternberg
  • Wavelength-specific cytotoxic agents
    Patent number: 4883790
    Abstract: A group of hydro-monobenzoporphyrins "green porphyrins" (Gp) having absorption maxima in the range of 670-720 nanometers is useful in treating disorders which are subject to hematoporphyrin derivative (HPD) treatment in the presence of light. The use of the Gp of the invention permits the irradiation to comprise wavelengths other than those absorbed by blood. The Gp of the invention may also be conjugated to receptor ligands 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: Grant
    Filed: April 23, 1987
    Date of Patent: November 28, 1989
    Assignee: University of British Columbia
    Inventors: Julia G. Levy, David Dolphin, Jack K. Chow