Patents by Inventor David G. Savage

David G. Savage 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).

  • Patent number: 11932919
    Abstract: The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: March 19, 2024
    Assignee: FREEPORT MINERALS CORPORATION
    Inventors: Jason M Morgan, Barbara J Savage, David G Meadows, Wayne W Hazen
  • Patent number: 4245003
    Abstract: Disclosed is a laser-imagable material comprising a transparent film having thereon a dried coating comprising graphite particles and binder. Also disclosed is the method of making the laser-imagable material and the method of imaging it.
    Type: Grant
    Filed: August 17, 1979
    Date of Patent: January 13, 1981
    Assignee: James River Graphics, Inc.
    Inventors: Raymond L. Oransky, David G. Savage