Patents by Inventor Patrick Bernard Sullivan

Patrick Bernard Sullivan 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).

  • Separation of cobalt from nickel thiocyanates with isophorone
    Patent number: 4008308
    Abstract: The separation of cobalt from nickel is enhanced by extracting aqueous solutions of the respective thiocyanates with a cyclic ketone, preferably isophorone.
    Type: Grant
    Filed: December 18, 1975
    Date of Patent: February 15, 1977
    Assignee: Union Carbide Corporation
    Inventors: Patrick Bernard Sullivan, Glenn Franklin Mitchell
  • Solvent extraction of copper values using dihydroxy azoarenes
    Patent number: 4003975
    Abstract: Copper values are extracted from aqueous solution by dihydroxy azoarenes dissolved in a water immiscible organic solvent.
    Type: Grant
    Filed: December 8, 1975
    Date of Patent: January 18, 1977
    Assignee: Union Carbide Corporation
    Inventors: John Frank Tancredi, Patrick Bernard Sullivan, Glenn Franklin Mitchell