Patents by Inventor David Colin

David Colin 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).

  • Standard for analysis
    Patent number: 4715988
    Abstract: A block of polymeric material 12 comprises label layers 14 and interposed non-label layers 16, each label layer containing a different known concentration of a label material. The block can be sliced by a microtome 18 into thin section each of which is useful as a standard for analysis e.g. in autoradiography. Preferred label materials are radioactive isotopes e.g. 3-H and 14-C; other label materials include metals and fluorescent materials.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: December 29, 1987
    Assignee: Amersham International plc.
    Inventor: David Colin