Patents by Inventor John D. Batty

John D. Batty 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).

  • Integrated, closed tank biooxidation/heap bioleach/precious metal leach processes for treating refractory sulfide ores
    Patent number: 6096113
    Abstract: A metal-containing refractory ore, such as refractory sulfide ore, is split into a first portion and a second portion. The first portion is partially biodigested by a sulfide-digesting microorganism in a biooxidation reactor where the microorganism is acclimated to the sulfide "diet" provided by the ore. The partially digested ore is then combined with the second portion. The resulting material is then dewatered, agglomerated, biooxidized and subjected to a lixiviation process.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: August 1, 2000
    Assignees: Echo Bay Mines, Limited, Biomin Technologies SA
    Inventors: Michael R. Schaffner, John D. Batty
  • Integrated, tank/heap biooxidation process
    Patent number: 5873927
    Abstract: A metal-containing refractory sulfide ore is split into a first portion and a second portion. The first portion is partially biodigested by a sulfide-digesting microorganism in a biooxidation reactor where the microorganism is acclimated to the sulfide "diet" provided by the ore. The partially digested ore is then combined with the second portion. The resulting material is then dewatered, biooxidized and subjected to a lixiviation process.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: February 23, 1999
    Assignees: Echo Bay Mines, Limited, Biomin Technologies SA
    Inventors: Michael R. Schaffner, John D. Batty