Patents by Inventor Ronald Chang

Ronald Chang 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: 10871498
    Abstract: A handling system for high throughput processing of a large volume of biological samples is provided herein. Such systems can include an array support assembly that supports multiple diagnostic assay modules in an array having at least two dimensions, a loader that loads multiple diagnostic assay cartridges within the multiple diagnostic assay modules. The array support assembly can be movable relative the loader to facilitate loading and unloading so as to provide more efficient processing.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: December 22, 2020
    Assignee: Cepheid
    Inventors: Ronald Chang, Steven Montgomery, Gregory Mote, Brian Bliven
  • Patent number: 10819130
    Abstract: A mobile charge/discharge device for being electrically connected to a power source and a first power receiving device is disclosed. The mobile charge/discharge device includes a detection circuit detecting a first working power of the power source and a second working power of the first power receiving device; an input port having a first power supply pin for being electrically connected to the power source; a first output port having a second power supply pin for being electrically connected to the first power receiving device; and a controlling circuit controlling the power source to supply the first power receiving device with a power according to one of the first working power and the second working power and supply the mobile charge/discharge device with a power according to the difference of the first working power and the second working power at the same time.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: October 27, 2020
    Assignee: WISTRON CORP.
    Inventors: Ronald Chang, Charles Chang, Heng-Chang Su
  • Publication number: 20200156067
    Abstract: A fluid control and processing system for controlling fluid flow among a plurality of chambers comprises a body including a fluid processing region continuously coupled fluidicly with a fluid displacement region. The fluid displacement region is depressurizable to draw fluid into the fluid displacement region and pressurizable to expel fluid from the fluid displacement region. The body includes at least one external port. The fluid processing region is fluidicly coupled with the at least one external port. The fluid displacement region is fluidicly coupled with at least one external port of the body. The body is adjustable with respect to the plurality of chambers to place the at least one external port selectively in fluidic communication with the plurality of chambers.
    Type: Application
    Filed: December 5, 2019
    Publication date: May 21, 2020
    Inventors: Douglas B. Dority, Ronald Chang
  • Publication number: 20200116750
    Abstract: Systems for processing a fluid sample to facilitate analysis with a semiconductor detection chip are provided herein. Such systems can include a sample processing cartridge coupleable with a chip carrier device configured for transport of the processed fluid sample from the sample cartridge. The chip carrier device can include one or more fluid channels extending between fluid-tight couplings attachable to transfer ports of the sample processing cartridge. The chip carrier device can include multiple portions or adapters, including a fluid sample portion, a flowcell portion and a chip carrier. Also provided are methods of preparing and transporting a fluid sample from a sample cartridge into a chip carrier device for analysis with a semiconductor detection chip carried within the chip carrier device.
    Type: Application
    Filed: September 20, 2019
    Publication date: April 16, 2020
    Inventors: DOUGLAS B. DORITY, Jonathan Siegrist, Ronald Chang
  • Patent number: 10525468
    Abstract: A fluid control and processing system for controlling fluid flow among a plurality of chambers comprises a body including a fluid processing region continuously coupled fluidicly with a fluid displacement region. The fluid displacement region is depressurizable to draw fluid into the fluid displacement region and pressurizable to expel fluid from the fluid displacement region. The body includes at least one external port. The fluid processing region is fluidicly coupled with the at least one external port. The fluid displacement region is fluidicly coupled with at least one external port of the body. The body is adjustable with respect to the plurality of chambers to place the at least one external port selectively in fluidic communication with the plurality of chambers.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: January 7, 2020
    Assignee: Cepheid
    Inventors: Douglas B. Dority, Ronald Chang
  • Patent number: 10247646
    Abstract: A self-contained biological sample processing cartridge includes top and bottom portions that close together to form a sealed chamber therein. The chamber is configured to enable one of one or more biological sample staining procedures appropriate for a biological sample. The top portion includes a chamber top section and valve control elements. The bottom portion includes a chamber bottom section and fluidic valves. One of the fluid valves evacuates the contents of the chamber. One of the valve control elements couples to a respective fluidic valve to control fluid flow for the chamber. The cartridge includes a preloaded reagent component to supply the chamber with the reagent component appropriate for a particular biological sample staining procedure. A user desiring to conduct a particular biological sample staining procedure may select a particular cartridge that is preloaded with the preloaded reagent fluidic valves component appropriate for the particular biological sample staining procedure.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: April 2, 2019
    Assignee: SYFR, INC.
    Inventors: Shazi S Iqbal, Steven M Montgomery, Ronald Chang, Gregory E Mote, Douglas B Dority, Jeffrey S Ross
  • Publication number: 20180187243
    Abstract: The invention provides methods and apparatus for carrying out multiple amplification reactions in a single reaction chamber by successive cycles of loading reaction mixture, amplifying, and removing spent reaction mixture in a fluidly closed reaction system. In particular, the present invention allows amplification of a plurality of target polynucleotides from a single sample by carrying out under closed-loop control successive amplifications of different target polynucleotides from different portions of the sample.
    Type: Application
    Filed: December 20, 2017
    Publication date: July 5, 2018
    Inventors: Joseph H. Smith, David H. Persing, Alan Wortman, Ronald Chang, David Swenson
  • Publication number: 20180159348
    Abstract: A mobile charge/discharge device for being electrically connected to a power source and a first power receiving device is disclosed. The mobile charge/discharge device includes a detection circuit detecting a first working power of the power source and a second working power of the first power receiving device; an input port having a first power supply pin for being electrically connected to the power source; a first output port having a second power supply pin for being electrically connected to the first power receiving device; and a controlling circuit controlling the power source to supply the first power receiving device with a power according to one of the first working power and the second working power and supply the mobile charge/discharge device with a power according to the difference of the first working power and the second working power at the same time.
    Type: Application
    Filed: October 26, 2015
    Publication date: June 7, 2018
    Applicant: Wistron Corp.
    Inventors: Ronald CHANG, Charles CHANG, Heng-Chang SU
  • Publication number: 20180143215
    Abstract: A handling system for high throughput processing of a large volume of biological samples is provided herein. Such systems can include an array support assembly that supports multiple diagnostic assay modules in an array having at least two dimensions, a loader that loads multiple diagnostic assay cartridges within the multiple diagnostic assay modules. The array support assembly can be movable relative the loader to facilitate loading and unloading so as to provide more efficient processing.
    Type: Application
    Filed: November 17, 2017
    Publication date: May 24, 2018
    Inventors: Ronald Chang, Steven Montgomery, Gregory Mote, Brian Bliven
  • Patent number: 9943848
    Abstract: An apparatus for disrupting cells or viruses comprises a container having a chamber for holding the cells or viruses. The container includes at least one flexible wall defining the chamber. The apparatus also includes a transducer for impacting an external surface of the flexible wall to generate pressure waves in the chamber. The apparatus also includes a pressure source for increasing the pressure in the chamber. The pressurization of the chamber ensures effective coupling between the transducer and the flexible wall. The apparatus may also include beads in the chamber for rupturing the cells or viruses.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: April 17, 2018
    Assignee: Cepheid
    Inventors: Michael T. Taylor, Phillip Belgrader, Farzad Pourahmadi, William A. McMillan, Ronald Chang, Stanley H. Sakai, Jesus Ching
  • Patent number: 9873909
    Abstract: The invention provides methods and apparatus for carrying out multiple amplification reactions in a single reaction chamber by successive cycles of loading reaction mixture, amplifying, and removing spent reaction mixture in a fluidly closed reaction system. In particular, the present invention allows amplification of a plurality of target polynucleotides from a single sample by carrying out under closed-loop control successive amplifications of different target polynucleotides from different portions of the sample.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: January 23, 2018
    Assignee: Cepheid
    Inventors: Joseph H. Smith, David H. Persing, Alan Wortman, Ronald Chang, David Swenson
  • Patent number: 9789481
    Abstract: The present invention provides a cartridge for analyzing a fluid sample. The cartridge provides for the efficient separation of cells or viruses in the sample from the remaining sample fluid, lysis of the cells or viruses to release the analyte (e.g., nucleic acid) therefrom, and optionally chemical reaction and/or detection of the analyte. The cartridge is useful in a variety of diagnostic, life science research, environmental, or forensic applications for determining the presence or absence of one or more analytes in a sample.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: October 17, 2017
    Assignee: Cepheid
    Inventors: Kurt E. Petersen, Michael T. Taylor, Farzad Pourahmadi, William A. McMillan, Ronald Chang, Stanley H. Sakai, Jesus Ching, Douglas B. Dority, Phillip Belgrader, M. Allen Northrup
  • Publication number: 20170252742
    Abstract: A fluid control and processing system for controlling fluid flow among a plurality of chambers comprises a body including a fluid processing region continuously coupled fluidicly with a fluid displacement region. The fluid displacement region is depressurizable to draw fluid into the fluid displacement region and pressurizable to expel fluid from the fluid displacement region. The body includes at least one external port. The fluid processing region is fluidicly coupled with the at least one external port. The fluid displacement region is fluidicly coupled with at least one external port of the body. The body is adjustable with respect to the plurality of chambers to place the at least one external port selectively in fluidic communication with the plurality of chambers.
    Type: Application
    Filed: May 22, 2017
    Publication date: September 7, 2017
    Inventors: Douglas B. DORITY, Ronald Chang
  • Patent number: 9669409
    Abstract: A fluid control and processing system for controlling fluid flow among a plurality of chambers comprises a body including a fluid processing region continuously coupled fluidicly with a fluid displacement region. The fluid displacement region is depressurizable to draw fluid into the fluid displacement region and pressurizable to expel fluid from the fluid displacement region. The body includes at least one external port. The fluid processing region is fluidicly coupled with the at least one external port. The fluid displacement region is fluidicly coupled with at least one external port of the body. The body is adjustable with respect to the plurality of chambers to place the at least one external port selectively in fluidic communication with the plurality of chambers.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: June 6, 2017
    Assignee: Cepheid
    Inventors: Douglas B. Dority, Ronald Chang
  • Patent number: D775363
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: December 27, 2016
    Assignee: CEPHEID
    Inventors: Ronald Chang, Steven M. Montgomery, Gregory E. Mote
  • Patent number: D802786
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: November 14, 2017
    Assignee: Cepheid
    Inventors: Ronald Chang, Steven M. Montgomery, Gregory E. Mote
  • Patent number: D804049
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: November 28, 2017
    Assignee: Cepheid
    Inventors: Ronald Chang, Steven M. Montgomery, Gregory E. Mote
  • Patent number: D889633
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: July 7, 2020
    Assignee: Cepheid
    Inventors: Ronald Chang, Steven M. Montgomery, Gregory Mote
  • Patent number: D907793
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: January 12, 2021
    Assignee: Cepheid
    Inventors: Ronald Chang, Steven M. Montgomery, Gregory Mote
  • Patent number: D908301
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: January 19, 2021
    Assignee: Cepheid
    Inventors: Ronald Chang, Steven M. Montgomery, Gregory Mote, Brian Bliven, Paul Jordan