Patents by Inventor Brian G. Roberts

Brian G. Roberts 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: 6503337
    Abstract: A method for chemically removing hydrocarbons from oil contaminated material is described. The method comprises contacting the material containing the oil with a combinations of surfactants in an oil carrier similar to or identical to the oil to be removed. This process avoids the use of water. Therefore the process does not compromise the quality of the oil by having water as a contaminant and thus eliminating the possibility of oil contaminated water getting into the environment. In certain examples, when the process is used to remove oil from land based well bore cuttings, the processed well bore cuttings contain high levels of chlorides, which is an environmental problem. In such examples the method also includes contacting the well bore cuttings with a solution of dioctyl sodium sulfosuccinate in water to reduce the chloride concentration. An apparatus designed for this purpose is also described.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: January 7, 2003
    Assignee: BGR Oilfield Services, Inc.
    Inventor: Brian G. Roberts
  • Patent number: 5823329
    Abstract: An infant's food dish includes a sound unit which is enabled by a switch, the state of which can be changed merely by bringing an object into proximity with the switch. Suitably the switch is magnetically operable and the object is the magnetized tip of a feeding utensil such as a spoon.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: October 20, 1998
    Inventor: Brian G. Roberts
  • Patent number: 5368742
    Abstract: A method is described for improving the removal of toxic resin acids and fatty acids from pulp and paper effluent and from other streams containing resins and fatty acids. The addition of an anionic material, such as albumin, gelatin, alginate or alginic acid prior to clarification with conventional or state of the art cationic coagulation clarification or retention will improve the removal of resin acids and fatty acids.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: November 29, 1994
    Assignee: B. G. Roberts Chemicals Inc.
    Inventor: Brian G. Roberts
  • Patent number: 4650598
    Abstract: The instant invention is directed to a method for suppressing dust comprising contacting a dust-producing material with an emulsion comprising: (a) 20-99.5%, by weight, water and (b) the balance a composition comprising at least one methacrylate polymer, at least one hydrophobic liquid, and at least one emulsifying surfactant. The instant invention is also directed to the above described emulsions.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: March 17, 1987
    Assignee: Calgon Corporation
    Inventors: Brian G. Roberts, Paul A. Rey
  • Patent number: D440451
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: April 17, 2001
    Assignee: Bio-Support Industries Ltd.
    Inventors: Brian G. Roberts, Ron Tsang
  • Patent number: D440452
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: April 17, 2001
    Assignee: Bio-Support Industries Ltd.
    Inventors: Brian G. Roberts, Ron Tsang
  • Patent number: D440453
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: April 17, 2001
    Assignee: Bio-Support Industries Ltd.
    Inventors: Brian G. Roberts, Ron Tsang
  • Patent number: D440454
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: April 17, 2001
    Assignee: Bio-Support Industries Ltd.
    Inventors: Brian G. Roberts, Ron Tsang
  • Patent number: D440808
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: April 24, 2001
    Assignee: Bio-Support Industries Ltd.
    Inventors: Brian G. Roberts, Ron Tsang
  • Patent number: D441588
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: May 8, 2001
    Assignee: Bio-Support Industries Ltd.
    Inventors: Brian G. Roberts, Ron Tsang
  • Patent number: D446983
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: August 28, 2001
    Assignee: Bio-Support Industries Ltd.
    Inventors: Brian G. Roberts, Ron Tsang
  • Patent number: D376622
    Type: Grant
    Filed: August 28, 1995
    Date of Patent: December 17, 1996
    Assignee: Obus Forme Ltd.
    Inventor: Brian G. Roberts