Patents by Inventor Peter R. Gray

Peter R. Gray 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).

  • Geochemical and geophysical exploration
    Patent number: 4066891
    Abstract: Valuable information on the presence or absence of uranium-enriched ores, geothermal reservoirs, or natural gas sources is obtained by analyzing earth samples for their relative Po210 content.
    Type: Grant
    Filed: August 6, 1976
    Date of Patent: January 3, 1978
    Assignee: Phillips Petroleum Company
    Inventor: Peter R. Gray