Patents by Inventor Stephen Chang

Stephen 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: 10510436
    Abstract: The present invention discloses a method of real-time quantification of a target nucleic acid in a sample by constructing a reference table of copy number vs. designated parameter from reference samples which sharing the same nucleic acid sequences with the target nucleic acid. The method includes (a) constructing a reference table of copy number vs. designated parameter from reference samples; (b) amplifying the target nucleic acid; (c) monitoring and detecting the amplification of the target nucleic acid in real-time; (d) analyzing the detected signals to get the designated parameter of the target nucleic acid; and (e) looking up and interpolating to the reference table to get the copy number of the target nucleic acid.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: December 17, 2019
    Assignee: Credo Biomedical Pte Ltd.
    Inventors: Jr. Winston Wong, Stephen Chang-Chi Kao, Ying-Ta Lai, Yih-Jyh Shann, Ming-Fa Chen, Chih-Rong Chen
  • Publication number: 20190352613
    Abstract: The invention provides an automated system for producing induced pluripotent stem cells (iPSCs) from adult somatic cells. Further, the system is used for producing differentiated adult cells from stem cells.
    Type: Application
    Filed: April 29, 2019
    Publication date: November 21, 2019
    Inventors: Scott Noggle, Kevin C. Eggan, Stephen Chang, Susan L. Solomon
  • Publication number: 20190316075
    Abstract: This invention concerns an integrated microfluidic system that utilizes microfluidic chip technology to receive a patient sample including cells, expand the cells, reprogram the expanded cells and then store the reprogrammed cells in a microfluidic chip. These microfluidic chips with stored reprogrammed cells may then be used in scenarios of genetic differentiation into specific cell types. Overall this system and workflow is suitable as a hospital based device that will allow the generation of iPSCs from every isolating patient for downstream diagnostic or therapeutic use.
    Type: Application
    Filed: November 17, 2017
    Publication date: October 17, 2019
    Inventors: Scott Noggle, Stephen Chang
  • Patent number: 10428309
    Abstract: The present invention provides various improved systems and methods for obtaining, generating, culturing, and handling cells, such as stem cells (including induced pluripotent stem cells or iPSCs) and differentiated cells, as well as cells and cell panels produced using such systems and methods, and uses of such cells and cell panels.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: October 1, 2019
    Assignee: New York Stem Cell Foundation, Inc.
    Inventors: Scott Noggle, Kevin Eggan, Stephen Chang, Susan Solomon
  • Patent number: 10421314
    Abstract: A herringbone surface decorative material includes two different types of rectangular shaped surface decorative sections, i.e. type-B1 and type-B2 decorative sections. Each of the decorative sections includes a plurality of parallel oblique pattern stripes and boundary lines are formed between adjacent pattern stripes. The boundary lines of the type-B1 and the type-B2 decorative sections are mirrored each other. The present invention further provides a method for manufacturing the same.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: September 24, 2019
    Assignee: SHANGHAI JINKA FLOORING TECHNOLOGY CO., LTD.
    Inventors: Hsiung-Tieh Yu, Stephen Chang
  • Publication number: 20190274465
    Abstract: The embodiment relates to the convenient amateur creation of a beverage where the extraction of flavor into a solvent is obtained using ultrasound. Where the solvent and solute are held in a removable carafe which has an ultrasound transducer. A control system will trigger ultrasound into the solvent for specific durations in order to quickly create the desired outcome. The use of one or more computers that will be able to implement a recipe, control the machine, and interact with the user ensure that the end user is able to operate the machine easily.
    Type: Application
    Filed: March 12, 2019
    Publication date: September 12, 2019
    Inventors: Denis Londry, Glen Poss, Antonio Fernandez, Stephen Chang
  • Patent number: 10273459
    Abstract: The invention provides an automated system for producing induced pluripotent stem cells (iPSCs) from adult somatic cells. Further, the system is used for producing differentiated adult cells from stem cells. The invention system is useful for isolating somatic cells from tissue samples, producing iPSC lines from adult differentiated cells by reprogramming such cells, identifying the pluripotent reprogrammed adult cells among other cells, and expanding and screening the identified reprogrammed cells.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: April 30, 2019
    Assignee: New York Stem Cell Foundation
    Inventors: Scott Noggle, Kevin C. Eggan, Stephen Chang, Susan Solomon
  • Patent number: 10233509
    Abstract: The present invention disclose a method for detection CPV 2a, 2b, and 2c in a sample by detecting VP2 gene. The signals can be detected by both fluorescent detection system and lateral flow immunochromatographic assay. The second object of this present invention is to provide a method to discriminate the wild type from the vaccine type. The first approach to achieve this object is discriminating wild type from vaccine type by SNP 36, which could be used on both fluorescent detection system and lateral flow immunochromatographic assay. The second approach to achieve this object is discriminating wild type from vaccine type by SNP 899 and SNP 963.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: March 19, 2019
    Assignee: Credo Biomedical Pte Ltd.
    Inventors: Jr Winston Wong, Stephen Chang-Chi Kao, Ying-Ta Lai, Ming-Lung Hung, Wei-Chen Wang
  • Patent number: 10222307
    Abstract: A mixing device for operating biological, chemical or biochemical materials used in an assay includes a mixing member formed with a plurality of chambers, each having a sealable port provided along an edge of the mixing member. The mixing device also includes one or more compartments that are movable along the edge of the mixing member between selected ones of the sealed chambers. This compartment is operable to receive materials from and transfer materials between the chambers. Selected ones of the chambers include associated processing elements, for example, including heating and cooling elements, magnetic elements, membranes and lateral flow devices. The mixing device is also pivotable, for example, to facilitate the application of gravity force in the transfer of materials between the chambers and one or more compartments. The mixing device may operate manually by hand-held unit. Also, this mixing device may operate automatically with at least one driving unit.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: March 5, 2019
    Assignee: Credo Biomedical Pte Ltd.
    Inventors: Jr Winston Wong, Stephen Chang-Chi Kao, Ying-Ta Lai, Ming-Fa Chen, Sheng-Pin Hsiao
  • Publication number: 20180155797
    Abstract: The present invention disclose a method for detection CPV 2a, 2b, and 2c in a sample by detecting VP2 gene. The signals can be detected by both fluorescent detection system and lateral flow immunochromatographic assay. The second object of this present invention is to provide a method to discriminate the wild type from the vaccine type. The first approach to achieve this object is discriminating wild type from vaccine type by SNP 36, which could be used on both fluorescent detection system and lateral flow immunochromatographic assay. The second approach to achieve this object is discriminating wild type from vaccine type by SNP 899 and SNP 963.
    Type: Application
    Filed: December 7, 2016
    Publication date: June 7, 2018
    Inventors: Jr Winston WONG, Stephen, Chang-Chi KAO, Ying-Ta Lai, Ming-Lung Hung, Wei-Chen Wang
  • Publication number: 20180029407
    Abstract: A herringbone surface decorative material includes two different types of rectangular shaped surface decorative sections, i.e. type-B1 and type-B2 decorative sections. Each of the decorative sections includes a plurality of parallel oblique pattern stripes and boundary lines are formed between adjacent pattern stripes. The boundary lines of the type-B1 and the type-B2 decorative sections are mirrored each other. The present invention further provides a method for manufacturing the same.
    Type: Application
    Filed: January 9, 2017
    Publication date: February 1, 2018
    Inventors: HSIUNG-TIEH YU, STEPHEN CHANG
  • Patent number: 9873910
    Abstract: The present invention provides a method of using a two-stage nucleic acid reaction and detection tube. First, a reaction and detection tube is provided. Then a reaction is performed by using a liquid in the storing space of the second tube, following by putting the dipstick into the dipstick fixing space of the connector. The first tube, the second tube and the connector is assembled together, wherein the dipstick is placed both in the dipstick fixing space of the connector and the detection space of the first tube. The reaction and detection tube is rotated from bottom to top, thus making the liquid in the storing space of the second tube flow into the liquid collection space through the diversion unit and then contact the dipstick in the dipstick fixing space. A detection result is then observed from the dipstick.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: January 23, 2018
    Assignee: Credo Biomedical Pte Ltd.
    Inventors: Jr Winston Wong, Stephen Chang-Chi Kao, Ying-Ta Lai, Ming-Fa Chen
  • Publication number: 20180011967
    Abstract: The present invention discloses a method of real-time quantification of a target nucleic acid in a sample by constructing a reference table of copy number vs. designated parameter from reference samples which sharing the same nucleic acid sequences with the target nucleic acid. After that, obtain the designated parameter of the target sample and get the copy number by looking up and interpolating to the reference table. The object of the present invention is in particular provide methods for the quantification of the target nucleic acid which the target nucleic acid is quantified independently without comparing it to the standard controls by using a calibration curve. This invention will not only provide a new quantifying method, but will also propose a new standard operational method that eliminates the variations accompanying amplification efficiency, polymerase activity, primer concentrations, and instrument variations.
    Type: Application
    Filed: July 5, 2016
    Publication date: January 11, 2018
    Inventors: Jr Winston WONG, Stephen, Chang-Chi KAO, Ying-Ta Lai, Yih-Jyh Shann, Ming-Fa Chen, Chih-Rong Chen
  • Publication number: 20170336304
    Abstract: A mixing device for operating biological, chemical or biochemical materials used in an assay includes a mixing member formed with a plurality of chambers, each having a sealable port provided along an edge of the mixing member. The mixing device also includes one or more compartments that are movable along the edge of the mixing member between selected ones of the sealed chambers. This compartment is operable to receive materials from and transfer materials between the chambers. Selected ones of the chambers include associated processing elements, for example, including heating and cooling elements, magnetic elements, membranes and lateral flow devices. The mixing device is also pivotable, for example, to facilitate the application of gravity force in the transfer of materials between the chambers and one or more compartments. The mixing device may operate manually by hand-held unit. Also, this mixing device may operate automatically with at least one driving unit.
    Type: Application
    Filed: May 4, 2017
    Publication date: November 23, 2017
    Inventors: Jr Winston WONG, Stephen, Chang-Chi KAO, Ying-Ta Lai, Ming-Fa Chen, Sheng-Pin Hsiao
  • Patent number: 9816136
    Abstract: The present invention discloses a two-stage reaction and detection tube comprises a first tube, a second tube and a connector. The first tube comprises a detection space for placing a dipstick and a detection space for the test result. The second tube comprises a storing space for the PCR or RT-PCR reagents and the target gene segments. The connector comprises a first portion and a second portion which connect to the first tube and the second tube respectively. The connector further comprises a diversion unit, a liquid collection space, and a dipstick fixing space, where the liquid collection space is connected to the dipstick fixing space. The target gene amplification and detection could be directly processed in the same tube without any liquid transfer.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: November 14, 2017
    Assignee: Credo Biomedical Pte Ltd.
    Inventors: Jr Winston Wong, Stephen Chang-Chi Kao, Ying-Ta Lai, Ming-Fa Chen
  • Patent number: 9786202
    Abstract: A surgical training system and method. The system comprises means for recording reference data representing a reference manipulation of a computer generated model of an object by a master user; means for physically guiding a trainee user based on the recorded reference data during a training manipulation of the model of the object by the trainee user; and means for recording assessment data representing an assessment manipulation of the model of the object by the trainee user without guidance.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: October 10, 2017
    Assignees: Agency for Science, Technology and Research, National University Hospital (S) Pte Ltd., National University of Singapore
    Inventors: Weimin Huang, Jiang Liu, Jiayin Zhou, Jing Zhang, Beng Hai Lee, Wing Kee Wong, Ngan Meng Tan, Zhuo Zhang, Fengshou Yin, Stephen Chang, Chee Kong Chui, Yi Su
  • Publication number: 20170282178
    Abstract: The present invention is related to a portable apparatus for performing uni-directional convective qPCR or qRT-PCR in a mixing reagent containing a target nucleic acid and a fluorescence dye including denaturation, annealing and extension processes. The apparatus includes at least a temperature controlling unit which comprises at least one heat source and one temperature sensor, a circulation-enabling container, a light source, a photo-detector, a filter, a set of optical elements, and a processor.
    Type: Application
    Filed: March 28, 2017
    Publication date: October 5, 2017
    Inventors: Jr Winston WONG, Stephen, Chang-Chi KAO, Ying-Ta Lai, Ming-Fa Chen, Chih-Rong Chen
  • Publication number: 20170253856
    Abstract: The present invention provides methods and compositions for the generation of microglial progenitor cells and microglial cells from pluripotent stem cells, such as embryonic stem cells and induced pluripotent stem cells. The present invention also provides cells produced using such methods, and both methods of treatment and methods of drug screening that use such cells. Also provided are various tissue culture media, tissue culture media supplements, and kits useful for the generation of human microglial progenitor cells and human microglial cells.
    Type: Application
    Filed: March 3, 2017
    Publication date: September 7, 2017
    Inventors: Panagiotis Douvaras, Scott Noggle, Stephen Chang, Valentina Fossati
  • Patent number: 9613375
    Abstract: In some example embodiments, a system and method are illustrated as including generating an item page that includes widget code and details related to an item for sale. Some example embodiments may include making the widget code available for retrieval from the item page.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: April 4, 2017
    Assignee: PAYPAL, INC.
    Inventors: Stephen Chang, Robert Chatwani, Daniel Burkhart
  • Publication number: 20170023555
    Abstract: The present invention relates to a kit and a device for measuring nucleic acid amplification through colour differentiation wherein said kit contains at least one pH indicator dye, one or more contained amplification reagents. The kit and device of the present invention also are used to detect, measure and/or record enzymatic reactions that result in pH changes. The kit and device provide a mechanism to detect pH change by utilizing a pH indicator dye, thus making it observable with the un-aided eye. The kit contains a device for carrying out said reactions. The device contains at least one container, reagents, a pH indicator, a heating or cooling means where needed and a magnetic component.
    Type: Application
    Filed: April 10, 2015
    Publication date: January 26, 2017
    Inventors: Chung-Pei OU, Abdur Rub Abdur RAHMAN, Kaushal SAGAR, Stephen Chang-Chi KAO, Winston WONG, JR.