Patents by Inventor Richard B. Clayton

Richard B. Clayton 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).

  • Hydrometallurgical process for the recovery of precious metal values from precious metal ores with thiosulfate lixiviant
    Patent number: 5354359
    Abstract: A hydrometallurgical process for the recovery of precious metal values from refractory precious metal ore materials containing preg-robbing carbon by leaching with a thiosulfate lixiviant, the process comprisinga. providing a body of particles and/or particulates of an ore material having precious metal values and preg-robbing carbonaceous components;b. contacting the body of particles and/or particulates with a thiosulfate lixiviant solution at conditions conducive to the formation of stable precious metal thiosulfate complexes;c. recovering the thiosulfate lixiviant from the body of particles and/or particulates after a period of contact which is sufficient for the lixiviant solution to become pregnant with precious metal values extracted from the ore material; andd. recovering the precious metal values from the lixiviant solution.In a preferred embodiment, the refractory ore materials are low grade precious metal ore materials.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: October 11, 1994
    Assignees: Newmont Gold Co., Newmont Mining Corp.
    Inventors: Rong-Yu Wan, K. Marc LeVier, Richard B. Clayton
  • Interconnection technique for downhole instrumentation
    Patent number: 4304451
    Abstract: Multiple electrical connections between circuits in axially displaced housings are made by mounting the connectors so that they are at right angles to the axis of the housings.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: December 8, 1981
    Assignee: General Electric Company
    Inventor: Richard B. Clayton