Patents by Inventor H. Randall Bell

H. Randall Bell 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: 9656261
    Abstract: Aspects of the disclosure provide a microfluidic chip to facilitate DNA analysis. The microfluidic chip includes a first domain configured for polymerase chain reaction (PCR) amplification of DNA fragments, a dilution domain coupled to the first domain to dilute a PCR mixture received from the first domain, and a second domain that is coupled to the dilution domain so as to receive the amplified DNA fragments. The second domain includes a separation channel that is configured to perform electrophoretic separation of the amplified DNA fragments. In addition, the disclosure provides a DNA analyzer to act on the microfluidic chip to perform an integrated single chip DNA analysis.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: May 23, 2017
    Assignees: LEIDOS INNOVATIONS TECHNOLOGY, INC., ZyGEM CORPORATION LTD., UNIVERSITY OF VIRGINIA PATENT FOUNDATION
    Inventors: H. Randall Bell, Joan M Bienvenue, John W Pettit, James P Landers, Jessica V Norris, Orion N Scott, Daniel J Marchiarullo, Daniel C Leslie
  • Patent number: 9067207
    Abstract: Aspects of the disclosure provides a DNA analyzer to facilitate an integrated single-chip DNA analysis. The DNA analyzer includes an interface for coupling a microfluidic chip to the DNA analyzer. The microfluidic chip includes a first domain configured for polymerase chain reaction (PCR) amplification of DNA fragments, and a second domain fluidically coupled to the first domain to receive the DNA fragments and perform electrophoretic separation of the DNA fragments. The DNA fragments are tagged with fluorescent labels. The DNA analyzer includes a detection module to excite the fluorescent labels to emit fluorescence and detect the emitted fluorescence. The detection module includes a laser source, a set of optical elements, a filter module and a photo-detector.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: June 30, 2015
    Assignees: UNIVERSITY OF VIRGINIA PATENT FOUNDATION, ZYGEM CORPORATION LTD., Lockheed Martin Corporation
    Inventors: H. Randall Bell, John W Pettit, James P Landers, Joan M Bienvenue, Daniel J Marchiarullo, Brian E Root, Orion N Scott
  • Publication number: 20110229897
    Abstract: Aspects of the disclosure provides a DNA analyzer to facilitate an integrated single-chip DNA analysis. The DNA analyzer includes an interface for coupling a microfluidic chip to the DNA analyzer. The microfluidic chip includes a first domain configured for polymerase chain reaction (PCR) amplification of DNA fragments, and a second domain fluidically coupled to the first domain to receive the DNA fragments and perform electrophoretic separation of the DNA fragments. The DNA fragments are tagged with fluorescent labels. The DNA analyzer includes a detection module to excite the fluorescent labels to emit fluorescence and detect the emitted fluorescence. The detection module includes a laser source, a set of optical elements, a filter module and a photo-detector.
    Type: Application
    Filed: March 4, 2011
    Publication date: September 22, 2011
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: H.Randall Bell, John W. Pettit, James P. Landers, Joan M. Bienvenue, Daniel J. Marchiarullo, Brian E. Root, Orion N. Scott
  • Publication number: 20110229898
    Abstract: Aspects of the disclosure provide a microfluidic chip to facilitate DNA analysis. The microfluidic chip includes a first domain configured for polymerase chain reaction (PCR) amplification of DNA fragments, a dilution domain coupled to the first domain to dilute a PCR mixture received from the first domain, and a second domain that is coupled to the dilution domain so as to receive the amplified DNA fragments. The second domain includes a separation channel that is configured to perform electrophoretic separation of the amplified DNA fragments. In addition, the disclosure provides a DNA analyzer to act on the microfluidic chip to perform an integrated single chip DNA analysis.
    Type: Application
    Filed: March 4, 2011
    Publication date: September 22, 2011
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: H. Randall Bell, Joan M. Bienvenue, John W. Pettit, James P. Landers, Jessica V. Norris, Orion N. Scott, Daniel J. Marchiarullo, Daniel C. Leslie
  • Publication number: 20110070578
    Abstract: Aspects of the disclosure provide a microfluidic chip to facilitate DNA analysis. The microfluidic chip includes a first domain configured for polymerase chain reaction (PCR) amplification of DNA fragments, a dilution domain coupled to the first domain to dilute a PCR mixture received from the first domain, and a second domain that is coupled to the dilution domain so as to receive the amplified DNA fragments. The second domain includes a separation channel that is configured to perform electrophoretic separation of the amplified DNA fragments. In addition, the disclosure provides a DNA analyzer to act on the microfluidic chip to perform an integrated single chip DNA analysis.
    Type: Application
    Filed: March 10, 2010
    Publication date: March 24, 2011
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: H. Randall Bell, Abby MacKness, Joan Bienvenue, John W. Pettit, James P. Landers
  • Publication number: 20110065101
    Abstract: Aspects of the disclosure provide a microfluidic chip. The microfluidic chip includes a first domain configured for polymerase chain reaction (PCR) amplification of DNA fragments, and a second domain for electrophoretic separation. The first domain includes at least a first reaction reservoir designated for PCR amplification based on a first sample, and a second reaction reservoir designated for PCR amplification based on a second sample. The second domain includes at least a first separation unit coupled to the first reaction reservoir to received first amplified DNA fragments based on the first sample, and a second separation unit coupled to the second reaction reservoir to received second amplified DNA fragments based on the second sample. The first separation unit is configured to perform electrophoretic separation for the first amplified DNA fragments, and the second separation unit is configured to perform electrophoretic separation for the second amplified DNA fragments.
    Type: Application
    Filed: March 2, 2010
    Publication date: March 17, 2011
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: H. Randall Bell, Joan Bienvenue, James P. Landers, John W. Pettit, Abby MacKness