Patents by Inventor Robert Walter Cattrall

Robert Walter Cattrall 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).

  • Polymer inclusion membranes for use in processes for treating thiocyanate containing aqueous solutions
    Patent number: 9120687
    Abstract: The present invention generally relates to the field of water treatment, and in particular to polymer inclusion membranes for use in industrial processes which generate aqueous solutions containing thiocyanate (SCN). The invention particularly relates to polymer inclusion membranes for use in processes for treating aqueous solutions containing SCN and more specifically polymer inclusion membranes comprising (i) about 10-20% wt/wt of a quaternary ammonium salt of formula (I) wherein R1 -R4 are independently alkyl chains and X? is an anion; (ii) about 5-30% wt/wt of a plasticizer/ modifier; and (iii) about 50% wt/wt of a polymer selected from the group consisting of poly(vinyl chloride), cellulose triacetate, and derivatives thereof.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: September 1, 2015
    Assignee: The University of Melbourne
    Inventors: Spas Dimitrov Kolev, Robert Walter Cattrall, Youngsoo Cho
  • PROCESS FOR TREATING THIOCYANATE CONTAINING AQUEOUS SOLUTIONS
    Publication number: 20140339154
    Abstract: The present invention generally relates to the field of water treatment, and in particular to industrial processes which generate aqueous solutions containing thiocyanate (SCN). The invention particularly relates to processes for treating aqueous solutions containing SCN and more specifically treatment processes to extract and remove SCN from said aqueous solutions.
    Type: Application
    Filed: June 26, 2014
    Publication date: November 20, 2014
    Inventors: Spas Dimitrov Kolev, Robert Walter Cattrall, Youngsoo Cho
  • Process for treating thiocyanate containing aqueous solutions
    Patent number: 8829061
    Abstract: The present invention generally relates to the field of water treatment, and in particular to industrial processes which generate aqueous solutions containing thiocyanate (SCN). The invention particularly relates to processes for treating aqueous solutions containing SCN and more specifically treatment processes to extract and remove SCN from said aqueous solutions.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: September 9, 2014
    Assignee: The University of Melbourne
    Inventors: Spas Dimitrov Kolev, Robert Walter Cattrall, Youngsoo Cho
  • PROCESS FOR TREATING THIOCYANATE CONTAINING AQUEOUS SOLUTIONS
    Publication number: 20130324625
    Abstract: The present invention generally relates to the field of water treatment, and in particular to industrial processes which generate aqueous solutions containing thiocyanate (SCN). The invention particularly relates to processes for treating aqueous solutions containing SCN and more specifically treatment processes to extract and remove SCN from said aqueous solutions.
    Type: Application
    Filed: August 12, 2011
    Publication date: December 5, 2013
    Inventors: Spas Dimitrov Kolev, Robert Walter Cattrall, Youngsoo Cho