Patents by Inventor Hasrat Ali

Hasrat Ali 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).

  • Amphiphilic trisulfonated porphyrazines for photodynamic applications in medicine
    Patent number: 7541457
    Abstract: Disclosed herein are novel trisulfonated tribenzo-mononahptho-porphyrazines, processes for making them and their application as improved photosensitizing drugs for the treatment of various medical conditions by photodynamic therapy (PDT). These water-soluble amphiphilic porphyrazines are substituted with different alkylyl, aryl, aminoalkyl and aminoaryl groups, with or without carboxyl moeity.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: June 2, 2009
    Assignee: Universite de Sherbrooke
    Inventors: Johannes E. Van Lier, Haroutioun Minas Hasséssian, Hongjian Tian, Nicole Cauchon, Hasrat Ali
  • Amphiphilic trisulfonated porphyrazines for photodynamic applications in medicine
    Publication number: 20060282038
    Abstract: Disclosed herein are novel trisulfonated tribenzo-mononahptho-porphyrazines, processes for making them and their application as improved photosensitizing drugs for the treatment of various medical conditions by photodynamic therapy (PDT). These water-soluble amphiphilic porphyrazines are substituted with different alkylyl, aryl, aminoalkyl and aminoaryl groups, with or without carboxyl moeity.
    Type: Application
    Filed: May 14, 2004
    Publication date: December 14, 2006
    Inventors: Johannes Van Lier, Haroutioun Hassessian, Hongjian Tian, Nicole Cauchon, Hasrat Ali
  • Process for the syntheses of monosulphonated phthalocyanines, naphthobenzoporphyrazines and porphyrins via a modified meerwein reaction
    Patent number: 5889181
    Abstract: Disclosed herein is a selective method for the preparation of single positional isomers of monosulphonated metallo derivatives of compounds selected from the group consisting of monosulphophthalocyanines, monosulphonaphthobenzoporphyrazines and monosulphotetraphenylporphyrins.
    Type: Grant
    Filed: August 25, 1995
    Date of Patent: March 30, 1999
    Assignee: University Of Sherbrooke
    Inventors: Sveltana V. Kudrevich, Hasrat Ali, Johan E. Van Lier