Patents by Inventor James T. Shen

James T. Shen 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).

  • Gamma stick
    Patent number: 4135884
    Abstract: A test stick, usable in clinical assays, is adapted to be inserted in a test tube that contains antigen solution. The stick comprises:(a) an elongated plastic member having a test portion adapted to be inserted into said solution in the test tube,(b) said test portion defining surface area at least about as great as the test tube bore surface extending about said test portion,(c) said test portion adapted to be coated with antibody to contact said solution.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: January 23, 1979
    Inventor: James T. Shen