Patents by Inventor Albert S. K. Chan

Albert S. K. Chan 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).

  • Radioprotectant for peptides labeled with radioisotope
    Patent number: 6338835
    Abstract: A method of ameliorating degradation radiolabeled peptides, especially radiolabeled proteins such as antibodies, by including povidone, also widely known as polyvinylpyrrolidone or PVP, as a radioprotectant in a composition containing a radiolabeled peptide is described. A radioprotectant composition and a stable peptide-radioisotope composition having povidone are also described. Ascorbic acid or other secondary stabilizers may also be added to the compositions to further enhance radioprotection.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: January 15, 2002
    Assignee: Coulter Pharmaceutical, Inc.
    Inventors: Dan Shochat, Albert S. K. Chan, Michael J. Buckley, David Colcher
  • Radioprotectant for peptides labeled with radioisotope
    Patent number: 5961955
    Abstract: A method of ameliorating degradation of radiolabeled peptides, especially radiolabeled proteins such as antibodies, by including povidone, also widely known as polyvinylpyrrolidone or PVP, as a radioprotectant in a composition containing a radiolabeled peptide is described. A radioprotectant composition and a stable peptide-radioisotope composition having povidone are also described. Ascorbic acid or other secondary stabilizers may also be added to the compositions to further enhance radioprotection.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: October 5, 1999
    Assignee: Coulter Pharmaceutical, Inc.
    Inventors: Dan Shochat, Albert S. K. Chan, Michael J. Buckley, David Colcher