Patents by Inventor Paul Pong-Shing Lam

Paul Pong-Shing Lam 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).

  • Composition and method for staining cellular DNA, comprising thiazine derivative metabisulfite and methanol or ethanol
    Patent number: 5942410
    Abstract: A composition and method for staining cellular DNA are disclosed. The composition of the present invention is an aqueous alcoholic solution that includes a cationic stain, a metabisulfite, and an alcohol preferably selected from methanol, ethanol, and mixtures thereof. In a preferred embodiment, the cationic stain is thionin.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: August 24, 1999
    Assignee: Oncometrics Imaging Corp.
    Inventors: Paul Pong-Shing Lam, Peter William Payne, David Michael Garner, Branko Palcic