Patents by Inventor Richard B. Edwards

Richard B. Edwards 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: 7608465
    Abstract: Immunological assays for several biological markers for thyroid disorders in a biological sample are performed in a single test with a combination of sandwich-type, sequential competitive, and serological assays by the use of particles classified into groups that are distinguishable by flow cytometry, one group for the assay of each marker. Each group of particles is coated with a different immunological binding member, and coating densities, co-coating materials, and special buffer solutions are used to adjust for differences in the sensitivities and dynamic ranges of each of the markers in the typical sample.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: October 27, 2009
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Michael I. Watkins, Suknan S. Chang, Renato B. Del Rosario, Patricia A. Miranda, Timothy D. Knight, Richard B. Edwards
  • Patent number: 7569399
    Abstract: Heterogeneous assays for different analytes in a single biological sample are performed simultaneously in a multiplexed assay that combines flow cytometry with the use of magnetic particles as the solid phase and yields an individual result for each analyte. The particles are distinguishable from each other by characteristics that permit them to be differentiated into groups, each group carrying an assay reagent bonded to the particle surface that is distinct from the assay reagents of particles in other groups. The magnetic particles facilitate separation of the solid and liquid phases, permitting the assays to be performed by automated equipment. Assays are also disclosed for the simultaneous detection of antibodies of different classes and a common antigen specificity or of a common class and different antigen specificities.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: August 4, 2009
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Michael I. Watkins, Richard B. Edwards
  • Patent number: 7465538
    Abstract: Heterogeneous assays for different analytes in a single biological sample are performed simultaneously in a multiplexed assay that combines flow cytometry with the use of magnetic particles as the solid phase and yields an individual result for each analyte. The particles are distinguishable from each other by characteristics that permit them to be differentiated into groups, each group carrying an assay reagent bonded to the particle surface that is distinct from the assay reagents of particles in other groups. The magnetic particles facilitate separation of the solid and liquid phases, permitting the assays to be performed by automated equipment. Assays are also disclosed for the simultaneous detection of antibodies of different classes and a common antigen specificity or of a common class and different antigen specificities.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: December 16, 2008
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Michael I. Watkins, Richard B. Edwards
  • Patent number: 7271009
    Abstract: Immunological assays for several biological markers for thyroid disorders in a biological sample are performed in a single test with a combination of sandwich-type, sequential competitive, and serological assays by the use of particles classified into groups that are distinguishable by flow cytometry, one group for the assay of each marker. Each group of particles is coated with a different immunological binding member, and coating densities, co-coating materials, and special buffer solutions are used to adjust for differences in the sensitivities and dynamic ranges of each of the markers in the typical sample.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: September 18, 2007
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Michael I. Watkins, Suknan S. Chang, Renato B. Del Rosario, Patricia A. Miranda, Timothy D. Knight, Richard B. Edwards
  • Patent number: 7205160
    Abstract: Heterogeneous assays for different analytes in a single biological sample are performed simultaneously in a multiplexed assay that combines flow cytometry with the use of magnetic particles as the solid phase and yields an individual result for each analyte. The particles are distinguishable from each other by characteristics that permit them to be differentiated into groups, each group carrying an assay reagent bonded to the particle surface that is distinct from the assay reagents of particles in other groups. The magnetic particles facilitate separation of the solid and liquid phases, permitting the assays to be performed by automated equipment. Assays are also disclosed for the simultaneous detection of antibodies of different classes and a common antigen specificity or of a common class and different antigen specificities.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: April 17, 2007
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Michael I. Watkins, Richard B. Edwards
  • Patent number: 6960478
    Abstract: Heterogeneous assays for different analytes in a single biological sample are performed simultaneously in a multiplexed assay that combines flow cytometry with the use of magnetic particles as the solid phase and yields an individual result for each analyte. The particles are distinguishable from each other by characteristics that permit them to be differentiated into groups, each group carrying an assay reagent bonded to the particle surface that is distinct from the assay reagents of particles in other groups. The magnetic particles facilitate separation of the solid and liquid phases, permitting the assays to be performed by automated equipment. Assays are also disclosed for the simultaneous detection of antibodies of different classes and a common antigen specificity or of a common class and different antigen specificities.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: November 1, 2005
    Assignee: Bio-Red Laboratories, Inc.
    Inventors: Michael I. Watkins, Richard B. Edwards
  • Patent number: 6872578
    Abstract: Heterogeneous assays for different analytes in a single biological sample are performed simultaneously in a multiplexed assay that combines flow cytometry with the use of magnetic particles as the solid phase and yields an individual result for each analyte. The particles are distinguishable from each other by characteristics that permit them to be differentiated into groups, each group carrying an assay reagent bonded to the particle surface that is distinct from the assay reagents of particles in other groups. The magnetic particles facilitate separation of the solid and liquid phases, permitting the assays to be performed by automated equipment. Assays are also disclosed for the simultaneous detection of antibodies of different classes and a common antigen specificity or of a common class and different antigen specificities.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: March 29, 2005
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Michael I. Watkins, Richard B. Edwards
  • Publication number: 20040126904
    Abstract: Heterogeneous assays for different analytes in a single biological sample are performed simultaneously in a multiplexed assay that combines flow cytometry with the use of magnetic particles as the solid phase and yields an individual result for each analyte. The particles are distinguishable from each other by characteristics that permit them to be differentiated into groups, each group carrying an assay reagent bonded to the particle surface that is distinct from the assay reagents of particles in other groups. The magnetic particles facilitate separation of the solid and liquid phases, permitting the assays to be performed by automated equipment. Assays are also disclosed for the simultaneous detection of antibodies of different classes and a common antigen specificity or of a common class and different antigen specificities.
    Type: Application
    Filed: December 11, 2003
    Publication date: July 1, 2004
    Applicant: Bio-Rad Laboratories, Inc.
    Inventors: Michael I. Watkins, Richard B. Edwards
  • Publication number: 20010054580
    Abstract: Heterogeneous assays for different analytes in a single biological sample are performed simultaneously in a multiplexed assay that combines flow cytometry with the use of magnetic particles as the solid phase and yields an individual result for each analyte. The particles are distinguishable from each other by characteristics that permit them to be differentiated into groups, each group carrying an assay reagent bonded to the particle surface that is distinct from the assay reagents of particles in other groups. The magnetic particles facilitate separation of the solid and liquid phases, permitting the assays to be performed by automated equipment. Assays are also disclosed for the simultaneous detection of antibodies of different classes and a common antigen specificity or of a common class and different antigen specificities.
    Type: Application
    Filed: July 13, 2001
    Publication date: December 27, 2001
    Applicant: Bio-Rad Laboratories, Inc.
    Inventors: Michael I. Watkins, Richard B. Edwards
  • Patent number: 6280618
    Abstract: Heterogeneous assays for different analytes in a single biological sample are performed simultaneously in a multiplexed assay that combines flow cytometry with the use of magnetic particles as the solid phase and yields an individual result for each analyte. The particles are distinguishable from each other by characteristics that permit them to be differentiated into groups, each group carrying an assay reagent bonded to the particle surface that is distinct from the assay reagents of particles in other groups. The magnetic particles facilitate separation of the solid and liquid phases, permitting the assays to be performed by automated equipment. Assays are also disclosed for the simultaneous detection of antibodies of different classes and a common antigen specificity or of a common class and different antigen specificities.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: August 28, 2001
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Michael I. Watkins, Richard B. Edwards
  • Publication number: 20010008217
    Abstract: Heterogeneous assays for different analytes in a single biological sample are performed simultaneously in a multiplexed assay that combines flow cytometry with the use of magnetic particles as the solid phase and yields an individual result for each analyte. The particles are distinguishable from each other by characteristics that permit them to be differentiated into groups, each group carrying an assay reagent bonded to the particle surface that is distinct from the assay reagents of particles in other groups. The magnetic particles facilitate separation of the solid and liquid phases, permitting the assays to be performed by automated equipment. Assays are also disclosed for the simultaneous detection of antibodies of different classes and a common antigen specificity or of a common class and different antigen specificities.
    Type: Application
    Filed: April 30, 1999
    Publication date: July 19, 2001
    Inventors: MICHAEL I. WATKINS, RICHARD B. EDWARDS
  • Patent number: 5616310
    Abstract: Process for manufacturing an alkali metal aluminosilicate of zeolite P type, wherein sodium silicate solution, sodium aluminate solution and sodium hydroxide are mixed together in a first reacting zone, the mixture reacting to form amorphous aluminosilicate and supersaturated mother liquor and being then transferred from this first reacting zone to a second reacting zone, the transferred mixure having a degree of crystallinity below 30%, preferably 20%, the mixture being afterwards allowed to fully convert into P type zeolite, the resulting product being eventually filtered, washed and dried.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: April 1, 1997
    Assignee: Crosfield Limited
    Inventors: Richard B. Edwards, Peter Graham
  • Patent number: 5253774
    Abstract: A reagent vessel and support rack for use in an automated clinical analyzer are disclosed. Characteristic features of the vessel are a membrane covering which is puncturable and preferably self-sealing, and characteristic features of the support rack are a rigid wall and retaining members to hold the vessel in the rack with the membrane against the rigid wall of the rack, thereby providing structural support to the membrane, with holes in the wall to permit access to the membrane and hence to the contents of the receptacle.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: October 19, 1993
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Jordan S. Honig, Christopher J. Macko, Richard B. Edwards
  • Patent number: 4680132
    Abstract: Grittiness in soap-containing formulations, one source of which is the reworking of previously processed soap, is reduced in an efficient manner by passing the formulation through a cavity transfer mixer.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: July 14, 1987
    Assignee: Lever Brothers Company
    Inventors: Terence A. Clarke, Richard B. Edwards, Graeme N. Irving
  • Patent number: 4517107
    Abstract: A soap-containing formulation capable of becoming transparent on working is subjected to shear between two mutually displaceable surfaces. A shear zone is formed in the formulation as the latter is entrained in the surfaces.
    Type: Grant
    Filed: March 14, 1984
    Date of Patent: May 14, 1985
    Assignee: Lever Brothers Company
    Inventors: Terence A. Clarke, Richard B. Edwards, Graeme N. Irving
  • Patent number: 4485030
    Abstract: The phases present in a shear sensitive soap-containing formulation are controlled and may be changed by passing the formulation through shear zones formed by mutually displaceable surfaces. The shear zones are formed within the formulation by entraining it in the surfaces during passage between the surfaces.
    Type: Grant
    Filed: March 14, 1984
    Date of Patent: November 27, 1984
    Assignee: Lever Brothers Company
    Inventors: Terence A. Clarke, Richard B. Edwards, Graeme N. Irving
  • Patent number: 4479884
    Abstract: The mush and/or lather properties of soap-containing material including free fatty acids can be improved by subjecting the material to working. The material is passed through the shear zone(s) formed between two mutually displaceable surfaces between which the material passes.
    Type: Grant
    Filed: March 14, 1984
    Date of Patent: October 30, 1984
    Assignee: Lever Brothers Company
    Inventors: Terence A. Clarke, Richard B. Edwards, Graeme N. Irving