Patents by Inventor Frank R. Gladden, Jr.

Frank R. Gladden, Jr. 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).

  • Method for preserving plated media and product
    Patent number: 4709819
    Abstract: A process and package product for preserving bacteriological culture media and gels is based on use of a sterilized air, liquid, and light impervious flexible wall pouch in which a Petri dish or similar device containing the medium or gel is stored and which is heat sealed after being evacuated and flushed with a inert gas to remove oxygen from within the dish and the pouch while in a vacuum chamber.
    Type: Grant
    Filed: July 23, 1986
    Date of Patent: December 1, 1987
    Assignee: Environmental Diagnostics, Inc.
    Inventors: Charles P. Lattuada, Frank R. Gladden, Jr.