Patents by Inventor Paul T. Wertlake

Paul T. Wertlake 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).

  • Tissue staining method and composition
    Patent number: 3997656
    Abstract: A superior and extremely rapid histological staining method is described in which frozen tissue is briefly immersed in an aqueous solution comprising trichloroacetic acid, zinc chloride and formaldehyde and then in a second solution comprising hematoxylin. The tissue can be further counterstained if desired. Also disclosed are improved fixatives useful in this and other histological techniques.
    Type: Grant
    Filed: July 15, 1975
    Date of Patent: December 14, 1976
    Assignee: Applied Bioscience
    Inventors: Paul T. Wertlake, James S. Harrison
  • Freeze storage container system
    Patent number: 3945523
    Abstract: A system for the transferral, freezing, storage and processing of liquids with a minimum of contamination is described. The components of the system include a hollow disc-shaped vessel of special construction which permits rapid freezing at extremely low temperatures, a pierceable, resilient sealing member on the ports of the disc-shaped vessel and a pointed cannular needle which is protected from contamination prior to use and operable to pierce the sealing member free of any contamination.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: March 23, 1976
    Assignee: Applied Bioscience
    Inventors: Paul T. Wertlake, James S. Harrison