Patents by Inventor David R. Carley

David R. Carley 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).

  • Solids removal from brine
    Patent number: 4472285
    Abstract: A process for removing solids forming iron impurities from a high density brine. The presence of these impurities in the generally clear brine oftentimes results in a green or brown color. Zinc dust is added to the brine to precipitate the iron impurities.
    Type: Grant
    Filed: August 13, 1982
    Date of Patent: September 18, 1984
    Assignee: Ethyl Corporation
    Inventors: David R. Carley, Warren B. Kirsch