Patents by Inventor G. Ronald Brown

G. Ronald Brown 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).

  • Use of tetraphenylborate for extraction of ammonium ions and amines from water
    Patent number: 6403177
    Abstract: A method of removing ammonium ions or amines from contaminated water includes treating the water with sodium tetraphenylborate under acidic conditions. Advantageously, the tetraphenylborate is immobilized on polymer beads and the water is contacted with the beads or passed through a bed of the beads.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: June 11, 2002
    Assignee: Dalhousie University
    Inventors: T. Stanley Cameron, Osvald Knop, Neil S. Cameron, Elinor M. Cameron, G. Ronald Brown
  • Use of tetraphenyloborate for extraction of ammonium ions and amines from water
    Patent number: 6171503
    Abstract: A method of removing ammonium ions or amines from contaminated water includes treating the water with sodium tetraphenylborate under acidic conditions. Advantageously, the tetraphenylborate is immobilized on polymer beads and the water is contacted with the beads or passed through a bed of the beads.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: January 9, 2001
    Assignee: Dalhousie University
    Inventors: T. Stanley Cameron, Osvald Knop, Neil S. Cameron, Elinor M. Cameron, G. Ronald Brown
  • Moisture cross-linking of vinyl chloride homopolymers and copolymers
    Patent number: 5880192
    Abstract: A vinyl chloride homopolymer or copolymer composition contains a silane, a compound capable of generating free radicals and a stabilizer comprising a lead compound or an organotin compound which is effective to prevent discoloration and degradation of the homopolymer or copolymer and does not inhibit the grafting of the vinyl silane on the homopolymer or copolymer. The graft homopolymer or copolymer is exposed to moisture to cross-link it, suitably after molding or otherwise fabricating the graft polymer to form an article. There is also provided a method of moisture cross-linking poly(vinyl chloride) and vinyl chloride copolymers.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: March 9, 1999
    Assignee: McGill University
    Inventors: G. Ronald Brown, Ved P. Gupta
  • Two step oxidation process for the production of carboxylic acids such as azelaic acid from unsaturated substrates
    Patent number: 5380928
    Abstract: The invention relates to a method for the high yield production of dicarboxylic acids such as azelaic acid by the controlled two step oxidation of an unsaturated hydrocarbon substrate. The method consists of two steps and involves the derivatization of the unsaturated substrate which locks and directs oxidative cleavage at the site of unsaturation to yield the desired acids.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: January 10, 1995
    Assignee: Synergistics Industries, Inc.
    Inventors: Abdul Malek, Clevys J. Monasterios, G. Ronald Brown, Ved P. Gupta
  • Polymer resins with amino acid containing pendants for sorption of bile pigments and bile acids
    Patent number: 4593073
    Abstract: The invention is concerned with a novel polymer addition product comprising hydrophilic polymer backbone having a molecular weight of at least about 5,000 and to which are attached amino acid containing pendants, the pendants containing at least one arginine or lysine amino acid. The polymeric compounds of the invention are highly efficient adsorbents for bilirubin and other bile pigments, as well as for bile acids such as cholic acid.
    Type: Grant
    Filed: April 23, 1985
    Date of Patent: June 3, 1986
    Assignee: The Royal Institution for the Advancement of Learing (McGill Univ.)
    Inventors: Leon E. St-Pierre, G. Ronald Brown, Dominique S. Henning, Marlene Bouvier