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Brent

Geoffrey Frederick Brent, Valentine AU

Patent application numberDescriptionPublished
20090305378INTEGRATED CHEMICAL PROCESS - A mineral carbonation process, characterised in that the silicate feedstock is thermally activated by using heat generated from the combustion of fuel prior to reacting the activated slurry feedstock with carbon dioxide.12-10-2009

Geoffrey Frederick Brent, New South Wales AU

Patent application numberDescriptionPublished
20080245254Method Of Blasting - Methods of blasting rock are disclosed and claimed in which blast holes are arranged in group of 2 to 7 blast holes. Within each of the groups, adjacent columns of explosive material (10-09-2008

Geoffrey Peter Brent, Matraville AU

Patent application numberDescriptionPublished
20090231542BIFOCAL CONTACT LENS - A contact lens having near vision and distance vision portions, the lens being movable on the eye between first and second positions, those positions corresponding with aligning the wearer's vision through the near vision and distance vision portions respectively. The lens is positionally stable on the eye in each of the two positions, and requires a force to be applied to the lens to move between the first and second positions. Preferably the lens has a back surface and a front surface, and said back surface has either one or two major back curve zones occupying a major portion of the lens back surface.09-17-2009