Patents by Inventor Clint Bowker

Clint Bowker 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).

  • Optimization of bioleaching process
    Patent number: 7494529
    Abstract: A method for optimizing a bioleaching process, at least in respect of heat generation and primary copper sulphide leaching, by actively monitoring and controlling inorganic and organic compounds in a raffinate solution, produced in the process, to levels below that which could be inhibitory to microbial activity of bioleaching strains used in the process.
    Type: Grant
    Filed: January 15, 2007
    Date of Patent: February 24, 2009
    Assignee: BHP Billiton SA Limited
    Inventors: Sanette H. De Kock, Paul Barnard, Clint Bowker, Hannes Strauss, Craig Van Buuren, John Batty, Chris Andre Du Plessis
  • Optimization of Bioleaching Process
    Publication number: 20070169587
    Abstract: A method for optimizing a bioleaching process, at least in respect of heat generation and primary copper sulphide leaching, by actively monitoring and controlling inorganic and organic compounds in a raffinate solution, produced in the process, to levels below that which could be inhibitory to microbial activity of bioleaching strains used in the process.
    Type: Application
    Filed: January 15, 2007
    Publication date: July 26, 2007
    Inventors: Sanette De Kock, Paul Barnard, Clint Bowker, Hannes Strauss, Craig Buuren, John Batty, Chris Du Plessis
  • Tank Bioleaching Process
    Publication number: 20070172935
    Abstract: A method of operating a tank bioleaching process of a concentrate, which includes the step of supplying carbon in a non-gaseous form to microbial cells used in the process.
    Type: Application
    Filed: January 15, 2007
    Publication date: July 26, 2007
    Inventors: Clint Bowker, John Batty, Gary Rorke, Hannes Strauss, Paul Barnard, Chris Andre Du Plessis
  • Treatment of base metal concentrate by a two-step bioleaching process
    Publication number: 20070028721
    Abstract: A method of recovering at least one base metal from a concentrate wherein a residue of a primary bioleach of the concentrate, under mesophilic and moderate themophilic conditions, is processed to recover at least one metal, and the base metal is recovered from a solution, produced by a secondary bioleach under thermophilic conditions, of a residue of the metal recovery process.
    Type: Application
    Filed: May 15, 2004
    Publication date: February 8, 2007
    Inventors: Clint Bowker, Paul Harvey