Patents by Inventor Hanif Jafari

Hanif Jafari 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: 10563283
    Abstract: Materials and methods for precious metal recovery are disclosed. Usable leaching solutions are preferably aqueous based and include appropriate materials in sufficient quantities to solubilize and stabilize precious metal. Such materials typically include oxidant material. Some or all of the oxidant material can be, in some instances, generated in-situ. The leaching solution is typically contacted with a substrate having a target precious metal, thereby solubilizing precious metal to form a stable, pregnant solution. The precious metal can then be recovered from the pregnant solution. In some instances, components of the leaching solution can be regenerated and reused in subsequent leaching.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: February 18, 2020
    Assignee: Enviroleach Technologies Inc.
    Inventors: Duane Nelson, Steve Scott, Mohammad Doostmohammadi, Hanif Jafari
  • Patent number: 10526682
    Abstract: Materials and methods for precious metal recovery are disclosed. Usable leaching solutions are preferably aqueous based and include appropriate materials in sufficient quantities to solubilize and stabilize precious metal. Such materials typically include oxidant material. Some or all of the oxidant material can be, in some instances, generated in-situ. The leaching solution is typically contacted with a substrate having a target precious metal, thereby solubilizing precious metal to form a stable, pregnant solution. The precious metal can then be recovered from the pregnant solution. In some instances, components of the leaching solution can be regenerated and reused in subsequent leaching.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: January 7, 2020
    Assignee: Enviroleach Technologies Inc.
    Inventors: Duane Nelson, Mohammad Doostmohammadi, Hanif Jafari, Ishwinder Singh Grewal
  • Publication number: 20190233917
    Abstract: Materials and methods for precious metal recovery are disclosed. Usable leaching solutions are preferably aqueous based and include appropriate materials in sufficient quantities to solubilize and stabilize precious metal. Such materials typically include phosphoric acid and an oxidant material. Some or all of the oxidant material can be, in some instances, generated in-situ. The leaching solution is typically contacted with a substrate having a target precious metal, thereby solubilizing precious metal to form a stable, pregnant solution. The precious metal can then be recovered from the pregnant solution. In some instances, components of the leaching solution can be regenerated and reused in subsequent leaching.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 1, 2019
    Inventors: Duane Nelson, Ishwinder Singh Grewal, Mohammad Doostmohammadi, Hanif Jafari
  • Publication number: 20190017145
    Abstract: Materials and methods for precious metal recovery are disclosed. Usable leaching solutions are preferably aqueous based and include appropriate materials in sufficient quantities to solubilize and stabilize precious metal. Such materials typically include oxidant material. Some or all of the oxidant material can be, in some instances, generated in-situ. The leaching solution is typically contacted with a substrate having a target precious metal, thereby solubilizing precious metal to form a stable, pregnant solution. The precious metal can then be recovered from the pregnant solution. In some instances, components of the leaching solution can be regenerated and reused in subsequent leaching.
    Type: Application
    Filed: June 1, 2018
    Publication date: January 17, 2019
    Inventors: Duane Nelson, Mohammad Doostmohammadi, Hanif Jafari, Ishwinder Singh Grewal
  • Publication number: 20170369967
    Abstract: Materials and methods for precious metal recovery are disclosed. Usable leaching solutions are preferably aqueous based and include appropriate materials in sufficient quantities to solubilize and stabilize precious metal. Such materials typically include oxidant material. Some or all of the oxidant material can be, in some instances, generated in-situ. The leaching solution is typically contacted with a substrate having a target precious metal, thereby solubilizing precious metal to form a stable, pregnant solution. The precious metal can then be recovered from the pregnant solution. In some instances, components of the leaching solution can be regenerated and reused in subsequent leaching.
    Type: Application
    Filed: June 23, 2017
    Publication date: December 28, 2017
    Inventors: Duane Nelson, Steve Scott, Mohammad Doostmohammadi, Hanif Jafari