Patents by Inventor H. Rizk Hanna

H. Rizk Hanna 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).

  • Oligosaccharide glycosides having mammalian immunosuppresive and tolerogenic properties
    Patent number: 5874411
    Abstract: Disclosed are novel oligosaccharide glycosides having mammalian immunosuppressive and tolerogenic properties, pharmaceutical compositions containing such oligosaccharide glycosides and to methods of using such oligosaccharide glycosides to modulate cell-mediated immune responses in a mammal.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: February 23, 1999
    Assignee: Glycomed Incorporated
    Inventors: Om P. Srivastava, Geeta Srivastava, Roman Szweda, David R. Bundle, Ole Hindsgaul, H. Rizk Hanna, Kevin Holme, Frank W. Barresi, Minghui Du
  • Time dependent administration of oligosaccharide glycosides related to blood group determinants having a type I or type II core structure in reducing inflammation in a sensitized mammal arising form exposure to an antigen
    Patent number: 5646123
    Abstract: Disclosed are methods for reducing the degree of antigen induced inflammation in a sensitized mammals. The disclosed methods employ oligosaccharide glycosides related to blood group determinants having a type I or type II core structure wherein the administration of such oligosaccharide glycosides is after initiation of the mammal's immune response but at or prior one-half the period of time required to effect maximal antigen-induced inflammation.
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: July 8, 1997
    Assignee: Alberta Research Council
    Inventors: Robert M. Ippolito, Wasimul Haque, Cong Jiang, H. Rizk Hanna, Andre P. Venot, Pandurang V. Nikrad, Mohammed A. Kashem, Richard Smith, Om P. Srivastava
  • Immunosuppressive and tolerogenic modified Lewis.sup.x compounds
    Patent number: 5580858
    Abstract: Disclosed are novel Lewis.sup.x and Lewis.sup.a analogues, pharmaceutical compositions containing such analogues, methods for their preparation and methods for their use.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: December 3, 1996
    Assignee: Alberta Research Council
    Inventors: Robert M. Ippolito, Wasimul Haque, Cong Jiang, H. Rizk Hanna, Andre P. Venot, Pandurang V. Nikrad, Mohammed A. Kashem, Richard H. Smith