Patents by Inventor Roman A. Pyrih

Roman A. Pyrih 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).

  • Process for recovering uranium from wet process phosphoric acid (III)
    Patent number: 4305912
    Abstract: Organic substances are removed from a highly ionic medium by contacting the medium with a substantially hydrophobic polystyrene type resin. This process is especially useful in the hydrometallurgical processes for the removal of organic substances from highly ionic raffinates prior to the recycle of the raffinate into the hydrometallurgical process.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: December 15, 1981
    Assignee: Earth Sciences, Inc.
    Inventors: Roman A. Pyrih, Robert S. Rickard, Orin F. Carrington