Patents by Inventor Ancel R. Calloway

Ancel R. Calloway 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).

  • Patent number: 4947186
    Abstract: An ultraviolet (UV) laser image recorder, consisting of an argon laser operating in the ultraviolet, with frequency doubling, records on a processless electron recording medium (PERM) and can develop either red or blue coloration in PERM.
    Type: Grant
    Filed: September 22, 1988
    Date of Patent: August 7, 1990
    Assignee: The Aerospace Corporation
    Inventors: Ancel R. Calloway, Jay H. Berman