Patents by Inventor Peter B. Back

Peter B. Back 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).

  • Ion evaporation source for tin
    Patent number: 5006715
    Abstract: An ion evaporation source for tin ions is prepared by coating a source element with a wettability enhancing gallium coating, and then loading the source with tin. The tin may be the naturally occurring tin, but can be an enriched tin containing a higher concentration of Sn.sup.120. The source produces a beam having a high fraction of Sn.sup.+ and Sn.sup.++ ions, and a small amount of the ionized wettability coating material. All but the desired ions are readily separated from the beam.
    Type: Grant
    Filed: May 16, 1989
    Date of Patent: April 9, 1991
    Assignee: Hughes Aircraft Company
    Inventors: Peter B. Back, Mark W. Utlaut, William M. Clark, Jr.