Patents by Inventor Randy Buffington

Randy Buffington 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).

  • Alkaline Oxidation Methods and Systems for Recovery of Metals from Ores
    Publication number: 20260185181
    Abstract: An oxidation step for sulfide and transition ores prior to CN leaching to recover 60 to 90 percent of metals from those ores. Use of tona, soda ash or carbonate source in treating sulfide and transition ores for CN leaching recovery of metals, including gold and silver. The oxidation of sulfide and transition ores in the presence of carbonate. Low moisture content in the heap, to enhance available oxygen, during the oxidation of sulfide and transition ores in the presence of carbonate.
    Type: Application
    Filed: February 20, 2026
    Publication date: July 2, 2026
    Applicant: Alderley Gold Corp.
    Inventor: Randy Buffington
  • Alkaline oxidation methods and systems for recovery of metals from ores
    Patent number: 12595529
    Abstract: An oxidation step for sulfide and transition ores prior to CN leaching to recover 60 to 90 percent of metals from those ores. Use of tona, soda ash or carbonate source in treating sulfide and transition ores for CN leaching recovery of metals, including gold and silver. The oxidation of sulfide and transition ores in the presence of carbonate. Low moisture content in the heap, to enhance available oxygen, during the oxidation of sulfide and transition ores in the presence of carbonate.
    Type: Grant
    Filed: April 23, 2024
    Date of Patent: April 7, 2026
    Assignee: Alderley Gold Corp.
    Inventor: Randy Buffington
  • Alkaline Oxidation Methods and Systems for Recovery of Metals from Ores
    Publication number: 20240417822
    Abstract: An oxidation step for sulfide and transition ores prior to CN leaching to recover 60 to 90 percent of metals from those ores. Use of tona, soda ash or carbonate source in treating sulfide and transition ores for CN leaching recovery of metals, including gold and silver. The oxidation of sulfide and transition ores in the presence of carbonate. Low moisture content in the heap, to enhance available oxygen, during the oxidation of sulfide and transition ores in the presence of carbonate.
    Type: Application
    Filed: April 23, 2024
    Publication date: December 19, 2024
    Applicant: Alderley Gold Corp.
    Inventor: Randy Buffington
  • Alkaline oxidation methods and systems for recovery of metals from ores
    Patent number: 11993826
    Abstract: An oxidation step for sulfide and transition ores prior to CN leaching to recover 60 to 90 percent of metals from those ores. Use of tona, soda ash or carbonate source in treating sulfide and transition ores for CN leaching recovery of metals, including gold and silver. The oxidation of sulfide and transition ores in the presence of carbonate. Low moisture content in the heap, to enhance available oxygen, during the oxidation of sulfide and transition ores in the presence of carbonate.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: May 28, 2024
    Assignee: Hycroft Mining Holding Corporation
    Inventor: Randy Buffington
  • Alkaline Oxidation Methods and Systems for Recovery of Metals from Ores
    Publication number: 20190376158
    Abstract: An oxidation step for sulfide and transition ores prior to CN leaching to recover 60 to 90 percent of metals from those ores. Use of tona, soda ash or carbonate source in treating sulfide and transition ores for CN leaching recovery of metals, including gold and silver. The oxidation of sulfide and transition ores in the presence of carbonate. Low moisture content in the heap, to enhance available oxygen, during the oxidation of sulfide and transition ores in the presence of carbonate.
    Type: Application
    Filed: May 14, 2019
    Publication date: December 12, 2019
    Applicant: Hycroft Mining Corporation
    Inventor: Randy Buffington