Patents Represented by Attorney, Agent or Law Firm Bruce D. Gray, Esq.
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Patent number: 6413536Abstract: The present invention relates to novel nonpolymeric compounds and compositions that form liquid, high viscosity materials suitable for the delivery of biologically active substances in a controlled fashion, and for use as medical or surgical devices. The materials can optionally be diluted with a solvent to form a material of lower viscosity, rendering the material easy to administer. This solvent may be water insoluble or water soluble, where the water soluble solvent rapidly diffuses or migrates away from the material in vivo, leaving a higher viscosity liquid material.Type: GrantFiled: August 27, 1999Date of Patent: July 2, 2002Assignee: Southern Biosystems, Inc.Inventors: John W. Gibson, Stacey A. Sullivan, John C. Middleton, Arthur J. Tipton
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Patent number: 6329563Abstract: The present invention relates to vitrification of ion exchange resins that have become loaded with hazardous or radioactive wastes, in a way that produces a homogenous and durable waste form and reduces the disposal volume of the resin. The methods of the present invention involve directly adding borosilicate glass formers and an oxidizer to the ion exchange resin and heating the mixture at sufficient temperature to produce homogeneous glass.Type: GrantFiled: July 16, 1999Date of Patent: December 11, 2001Assignee: Westinghouse Savannah River CompanyInventors: Connie A. Cicero-Herman, Rhonda Jackson Workman
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Patent number: 6258994Abstract: The invention relates to methods of vitrifying waste and for lowering the melting point of glass forming systems by including lithia formers in the glass forming composition in significant amounts, typically from about 0.16 wt % to about 11 wt %, based on the total glass forming oxides. The lithia is typically included as a replacement for alkali oxide glass formers that would normally be present in a particular glass forming system. Replacement can occur on a mole percent or weight percent basis, and typically results in a composition wherein lithia forms about 10 wt % to about 100 wt % of the alkali oxide glass formers present in the composition. The present invention also relates to the high lithia glass compositions formed by these methods.Type: GrantFiled: September 28, 2000Date of Patent: July 10, 2001Assignee: Westinghouse Savannah River CompanyInventors: Carol M. Jantzen, John B. Pickett, Connie A. Cicero-Herman, James C. Marra
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Patent number: 6245811Abstract: Compounds of structure (I), and when for use in therapy: where R1 is an acyl group derived from a C16-30 fatty acid with two or more cis or trans double bonds and particularly an n-6 or n-3 series EFA or conjugated linoleic acid, or columbinic acid, or parinaric acid and R2 is as R1 the same or different, or any other nutrient, drug or other bioactive residue released as the active in the body and R3 is either hydrogen, fully hydrocarbon, or containing heteroatoms, preferably an alkyl group particularly a C1-C4 alkyl group.Type: GrantFiled: August 18, 1999Date of Patent: June 12, 2001Assignee: Scotia Holdings PLCInventors: David Frederick Horrobin, Mehar Manku, Austin McMordie, Philip Knowles, Peter Redden, Andrea Pitt
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Patent number: 6187192Abstract: A method and device for the filtration and/or purification of fluids water or other solutions containing microbiological contaminants, such as fluids containing including bacteria and/or viruses, where the fluid water is passed through a purification material composed of apatite and absorption media in a fixed binder matrix.Type: GrantFiled: August 25, 1999Date of Patent: February 13, 2001Assignee: WaterVisions International, Inc.Inventors: Arthur W. Johnston, Arthur F. Johnston, Frank A. Williams, Kenneth D. Hughes
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Patent number: 6180016Abstract: A method and device for the filtration and/or purification of fluids water or other solutions containing microbiological contaminants, such as fluids containing including bacteria and/or viruses, where the fluid water is passed through a purification material composed of apatite and absorption media in a fixed binder matrix.Type: GrantFiled: February 4, 2000Date of Patent: January 30, 2001Assignee: Watervisions International, Inc.Inventors: Arthur W. Johnston, Arthur F. Johnston, Frank A. Williams, Kenneth D. Hughes
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Patent number: 6145343Abstract: The invention relates to methods of vitrifying waste and for lowering the melting point of glass forming systems by including lithia formers in the glass forming composition in significant amounts, typically from about 0.16 wt % to about 11 wt %, based on the total glass forming oxides. The lithia is typically included as a replacement for alkali oxide glass formers that would normally be present in a particular glass forming system. Replacement can occur on a mole percent or weight percent basis, and typically results in a composition wherein lithia forms about 10 wt % to about 100 wt % of the alkali oxide glass formers present in the composition. The present invention also relates to the high lithia glass compositions formed by these methods.Type: GrantFiled: May 2, 1998Date of Patent: November 14, 2000Assignee: Westinghouse Savannah River CompanyInventors: Carol M. Jantzen, John B. Pickett, Connie A. Cicero-Herman, James C. Marra
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Patent number: 5960368Abstract: The present invention is directed to a process for reducing the volume of low level radioactive and mixed waste to enable the waste to be more economically stored in a suitable repository, and for placing the waste into a form suitable for permanent disposal. The invention involves a process for preparing radioactive, hazardous, or mixed waste for storage by contacting the waste starting material containing at least one organic carbon-containing compound and at least one radioactive or hazardous waste component with nitric acid and phosphoric acid simultaneously at a contacting temperature in the range of about 140.degree. C. to about 210 .degree. C.Type: GrantFiled: May 22, 1997Date of Patent: September 28, 1999Assignee: Westinghouse Savannah River CompanyInventors: Robert A. Pierce, James R. Smith, William G. Ramsey, Connie A. Cicero-Herman, Dennis F. Bickford