Patents by Inventor Sheung Pun Tsai

Sheung Pun Tsai 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).

  • Dextran-hemoglobin conjugates as blood substitutes
    Patent number: 7307150
    Abstract: An hemoglobin (Hb)-Dextran (Dx) conjugate having a molecular weight between 50 kd and 500 kD provides a blood substitute that results in acceptable erythrocyte sedimentation rate (ESR) and excretion rate (EXC) values. DxHb conjugates of the invention can be used for a variety of purposes as an alternative to blood.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: December 11, 2007
    Assignee: Dextrosang Corporation
    Inventors: Sheung Pun Tsai, Jeffrey Tze-Fei Wong
  • Dextran-hemoglobin conjugates as blood substitutes
    Publication number: 20030073820
    Abstract: An hemoglobin (Hb)-Dextran (Dx) conjugate having a molecular weight between 50 kD and 500 kD provides a blood substitute that results in acceptable erythrocyte sedimentation rate (ESR) and excretion rate (EXC) values. DxHb conjugates of the invention can be used for a variety of purposes as an alternative to blood.
    Type: Application
    Filed: April 24, 2002
    Publication date: April 17, 2003
    Inventors: Sheung Pun Tsai, Jeffrey Tze-Fei Wong