Patents by Inventor Ricardo C. Pastor

Ricardo C. Pastor 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).

  • Purification of alkali metal halides
    Patent number: 3932597
    Abstract: A new process or method has been developed whereby the purity of metal halides, prepared by conventional methods, can be significantly upgraded. The process, which includes a scrubbing of metal halides with a halide-source species in the vapor phase, has been shown to be effective not only in reducing the concentration of oxyanion impurities and volatile cation halide impurities, but effective in reducing hydroxyl ion (OH.sup.-) contaminations as well.Metal halides purified by this method are particularly useful as starting materials for growing optically pure metal halide crystals.
    Type: Grant
    Filed: June 17, 1975
    Date of Patent: January 13, 1976
    Assignee: Hughes Aircraft Company
    Inventor: Ricardo C. Pastor