Patents by Inventor Stephen Archbold Bergen

Stephen Archbold Bergen 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).

  • Atomic spectroscopy
    Patent number: 4009964
    Abstract: An atomic absorption spectroscopic apparatus employing a source of focused infra-red radiation and a holder for a sample at the focal point of the source of infra-red radiation in a chamber adapted to be purged by an inert gas and having windows transparent to a beam of monochromatic light, the holder being in path of the light beam.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: March 1, 1977
    Assignee: U.S. Philips Corporation
    Inventor: Stephen Archbold Bergen