Patents by Inventor Jeffrey W. Degeal

Jeffrey W. Degeal 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: 10190959
    Abstract: A sorting flow cytometer identifies an undesirable drop charge sequence that is preassigned to adjacent drops before the drops have separated from a fluid stream. An example of an undesirable drop charge sequence is a sequence of adjacent drops that are charged with sufficiently high opposing charges that, after the drops are formed, would result in merging of the adjacent drops. The sorting flow cytometer adjusts the assignment of drop charges to avoid the undesired drop charge sequence.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: January 29, 2019
    Assignee: Beckman Coulter, Inc.
    Inventors: Thomas L. Thrasher, Bruce G. Bailey, Eric Von Seggern, Jeffrey W. Degeal
  • Publication number: 20170227447
    Abstract: Multi-peak events are evaluated by a flow cytometer to distinguish events associated with a single particle from events associated with multiple particles for proper characterization of the particles.
    Type: Application
    Filed: July 20, 2015
    Publication date: August 10, 2017
    Inventors: Jeffrey W. DEGEAL, Thomas L. THRASHER, Carley ROSS, Bruce G. BAILEY
  • Publication number: 20150050688
    Abstract: A sorting flow cytometer identifies an undesirable drop charge sequence that is preassigned to adjacent drops before the drops have separated from a fluid stream. An example of an undesirable drop charge sequence is a sequence of adjacent drops that are charged with sufficiently high opposing charges that, after the drops are formed, would result in merging of the adjacent drops. The sorting flow cytometer adjusts the assignment of drop charges to avoid the undesired drop charge sequence.
    Type: Application
    Filed: February 8, 2013
    Publication date: February 19, 2015
    Inventors: Thomas L. Thrasher, Bruce G. Bailey, Eric Von Seggern, Jeffrey W. Degeal
  • Patent number: 8889072
    Abstract: Disclosed are computer-implemented methods of sorting particles from a particle stream in a flow cytometer. The methods include: calculating sort decision making parameters using the raw event data values from a flow cytometer and a sort logic; performing sort logic computations using the sort logic definition and the sort decision making parameters to generate sort decisions; converting the sort decisions into sort commands; and sending the one or more sort commands to the flow cytometer. Sort logic computations may include algorithmically using conditional branching logic, and may include sort logic equations having mathematical functions characterizing one or more regions of interest in multidimensional data space. Such mathematical functions may be determined based on one or more parameters provided by a user. Also disclosed are corresponding systems having a flow cytometer and a computer.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: November 18, 2014
    Assignee: Beckman Coulter, Inc.
    Inventors: Jeffrey W. Degeal, Charles S. Bay, Edward A. Stanton, Paul Barclay Purcell, George C. Malachowski
  • Publication number: 20130244317
    Abstract: Disclosed are computer-implemented methods of sorting particles from a particle stream in a flow cytometer. The methods include: calculating sort decision making parameters using the raw event data values from a flow cytometer and a sort logic; performing sort logic computations using the sort logic definition and the sort decision making parameters to generate sort decisions; converting the sort decisions into sort commands; and sending the one or more sort commands to the flow cytometer. Sort logic computations may include algorithmically using conditional branching logic, and may include sort logic equations having mathematical functions characterizing one or more regions of interest in multidimensional data space. Such mathematical functions may be determined based on one or more parameters provided by a user. Also disclosed are corresponding systems having a flow cytometer and a computer.
    Type: Application
    Filed: September 13, 2012
    Publication date: September 19, 2013
    Inventors: Jeffrey W. Degeal, Charles S. Bay, Edward A. Stanton, Paul Barclay Purcell, George C. Malachowski
  • Patent number: 8290625
    Abstract: Disclosed are computer-implemented methods of sorting particles from a particle stream in a flow cytometer. The methods include: calculating sort decision making parameters using the raw event data values from a flow cytometer and a sort logic; performing sort logic computations using the sort logic definition and the sort decision making parameters to generate sort decisions; converting the sort decisions into sort commands; and sending the one or more sort commands to the flow cytometer. Sort logic computations may include algorithmically using conditional branching logic, and may include sort logic equations having mathematical functions characterizing one or more regions of interest in multidimensional data space. Such mathematical functions may be determined based on one or more parameters provided by a user. Also disclosed are corresponding systems having a flow cytometer and a computer.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: October 16, 2012
    Assignee: Beckman Coulter, Inc.
    Inventors: Jeffrey W. Degeal, Charles S. Bay, Edward A. Stanton, Paul Barclay Purcell, George C. Malachowski
  • Publication number: 20080255705
    Abstract: Disclosed are computer-implemented methods of sorting particles from a particle stream in a flow cytometer. The methods include: calculating sort decision making parameters using the raw event data values from a flow cytometer and a sort logic; performing sort logic computations using the sort logic definition and the sort decision making parameters to generate sort decisions; converting the sort decisions into sort commands; and sending the one or more sort commands to the flow cytometer. Sort logic computations may include algorithmically using conditional branching logic, and may include sort logic equations having mathematical functions characterizing one or more regions of interest in multidimensional data space. Such mathematical functions may be determined based on one or more parameters provided by a user. Also disclosed are corresponding systems having a flow cytometer and a computer.
    Type: Application
    Filed: April 4, 2008
    Publication date: October 16, 2008
    Applicant: Beckman Coulter, Inc.
    Inventors: Jeffrey W. Degeal, Charles S. Bay, Edward A. Stanton, Paul Barclay Purcell, George C. Malachowski