Patents by Inventor Karl L. Merkle

Karl L. Merkle 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).

  • High-resolution, cryogenic, side-entry type specimen stage
    Patent number: 4162401
    Abstract: A high-resolution, cryogenic side-entry type specimen stage includes a copper block within which a specimen can be positioned in the electron beam of an electron microscope, one end of the copper block constituting a specimen heat exchanger, means for directing a flow of helium at cryogenic temperature into the heat exchanger, and electrical leads running from the specimen to the exterior of the microscope for four point D.C. electrical resistivity measurements.
    Type: Grant
    Filed: May 17, 1978
    Date of Patent: July 24, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Wayne E. King, Karl L. Merkle