Patents by Inventor Douglas Albert Hope

Douglas Albert Hope 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).

  • Method for selective removal of cadmium
    Patent number: 7998441
    Abstract: A method for selective removal of cadmium from a feed solution also containing other metals such as nickel (Ni) and/or cobalt (Co), utilizing a thiourea based ion exchange resin, and a method for eluting cadmium adsorbed on the thiourea based resin.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: August 16, 2011
    Assignee: CVRD Inco Limited
    Inventors: Indje Ognianov Mihaylov, Douglas Albert Hope
  • METHOD FOR SELECTIVE REMOVAL OF CADMIUM
    Publication number: 20090078649
    Abstract: A method for selective removal of cadmium from a feed solution also containing other metals such as nickel (Ni) and/or cobalt (Co), utilizing a thiourea based ion exchange resin, and a method for eluting cadmium adsorbed on the thiourea based resin.
    Type: Application
    Filed: September 20, 2007
    Publication date: March 26, 2009
    Applicant: CVRD INCO LIMITED
    Inventors: INDJE OGNIANOV MIHAYLOV, Douglas Albert Hope