Patents by Inventor Constance MacDonald

Constance MacDonald 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).

  • Method for sequencing reaction cleanup by constant differential pressure ultrafiltration
    Patent number: 6645722
    Abstract: A method for sequencing reaction cleanup adapted to remove contaminants from a sequencing reaction, comprising the steps of: providing a defined quantity of sequencing reaction product; providing at least one ultrafiltration membrane having at least one surface; transferring the suspended sequencing reaction product to the surface of the ultrafiltration membrane; and applying a first constant pressure differential to the ultrafiltration membrane at a force capable of producing the sequencing reaction product substantially free of the contaminants.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: November 11, 2003
    Assignee: Millipore Corporation
    Inventors: Jack T. Leonard, Constance MacDonald, Joseph Gabriels
  • Method for sequencing reaction cleanup by constant pressure differential ultrafiltration
    Patent number: 6642005
    Abstract: A method for sequencing reaction cleanup adapted to remove contaminants from a sequencing reaction, comprising the steps of: providing a defined quantity of sequencing reaction product; providing at least one ultrafiltration membrane having at least one surface; transferring the suspended sequencing reaction product to the surface of the ultrafiltration membrane; and applying a first constant pressure differential to the ultrafiltration membrane at a force capable of producing the sequencing reaction product substantially free of the contaminants.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: November 4, 2003
    Assignee: Millipore Corporation
    Inventors: Jack T. Leonard, Constance MacDonald, Joseph Gabriels
  • Method for sequencing reaction cleanup by constant pressure differential ultrafiltration
    Publication number: 20030023076
    Abstract: A method for sequencing reaction cleanup adapted to remove contaminants from a sequencing reaction, comprising the steps of: providing a defined quantity of sequencing reaction product; providing at least one ultrafiltration membrane having at least one surface; transferring the suspended sequencing reaction product to the surface of the ultrafiltration membrane; and applying a first constant pressure differential to the ultrafiltration membrane at a force capable of producing the sequencing reaction product substantially free of the contaminants.
    Type: Application
    Filed: August 30, 2002
    Publication date: January 30, 2003
    Inventors: Jack T. Leonard, Constance MacDonald, Joseph Gabriels
  • Method for sequencing reaction cleanup by constant pressure diffential ultrafiltration
    Patent number: 6498240
    Abstract: A method for sequencing reaction cleanup adapted to remove contaminants from a sequencing reaction, comprising the steps of: providing a defined quantity of sequencing reaction product; providing at least one ultrafiltration membrane having at least one surface; transferring the suspended sequencing reaction product to the surface of the ultrafiltration membrane; and applying a first constant pressure differential to the ultrafiltration membrane at a force capable of producing the sequencing reaction product substantially free of the contaminants.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: December 24, 2002
    Assignee: Millipore Corporation
    Inventors: Jack T. Leonard, Constance MacDonald, Joseph Gabriels
  • Method for sequencing reaction cleanup by constant differential pressure ultrafiltration
    Publication number: 20020102593
    Abstract: A method for sequencing reaction cleanup adapted to remove contaminants from a sequencing reaction, comprising the steps of: providing a defined quantity of sequencing reaction product; providing at least one ultrafiltration membrane having at least one surface; transferring the suspended sequencing reaction product to the surface of the ultrafiltration membrane; and applying a first constant pressure differential to the ultrafiltration membrane at a force capable of producing the sequencing reaction product substantially free of the contaminants.
    Type: Application
    Filed: October 19, 2001
    Publication date: August 1, 2002
    Inventors: Jack T. Leonard, Constance MacDonald, Joseph Gabriels