Patents by Inventor Erh-Chia Yeh

Erh-Chia Yeh 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: 10864517
    Abstract: A fluidic chip employing a vacuum void to store vacuum potential for controlled micro-fluidic pumping in conjunction with biomimetic vacuum lungs.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: December 15, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Luke P. Lee, Erh-Chia Yeh
  • Patent number: 10589270
    Abstract: A Digital Separation (DS) chip for separating, digitizing and analyzing a fluid sample is presented. The DS chip includes a fluidic layer that prepares and compartmentalizes the fluid sample for analysis. Cliff structures that are adjacent to wells skim the fluid sample and prevent particles, which may interfere with fluid sample analysis, from entering the wells. Skimmed fluid sample analysis occurs in the wells and endpoint data can be collected and used to determine an original concentration of a desired component in the fluid sample very quickly. Using the described apparatus and methods, a fluid sample can be prepared, digitized, compartmentalized, assayed and the endpoint data collected in ˜30 minutes. The apparatus and methods can easily be adapted to provide parallel processing of a sample.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: March 17, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Luke P. Lee, Erh-Chia Yeh
  • Publication number: 20180313345
    Abstract: A fluidic chip employing a vacuum void to store vacuum potential for controlled micro-fluidic pumping in conjunction with biomimetic vacuum lungs.
    Type: Application
    Filed: April 12, 2018
    Publication date: November 1, 2018
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Luke P. Lee, Erh-Chia Yeh
  • Publication number: 20180297028
    Abstract: A microfluidic apparatus and methods for fabrication with a fluidic layer and a pattern layer of spots of concentrated reagents that are disposed in wells of a fluidic layer when the two layers are bonded together. Reagents are stored on the chip prior to use. Because reagents are confined to specific wells, contamination of the channels and other microfluidic structures of the fluidic layer are avoided. The fluidic layer also has a system of vacuum channels and at least one vacuum void to store vacuum potential for controlled micro-fluidic pumping. The top and bottom surfaces of the bonded layers are sealed. The chip can be used for point of care diagnostic assays such as quantitative testing, digital nucleic acid amplification, and biochemical testing such as immunoassays and chemistry testing.
    Type: Application
    Filed: April 5, 2018
    Publication date: October 18, 2018
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Luke P. Lee, Erh-Chia Yeh
  • Patent number: 9970423
    Abstract: A fluidic chip employing a vacuum void to store vacuum potential for controlled micro-fluidic pumping in conjunction with biomimetic vacuum lungs.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: May 15, 2018
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Luke P. Lee, Erh-Chia Yeh
  • Publication number: 20170254318
    Abstract: A fluidic chip employing a vacuum void to store vacuum potential for controlled micro-fluidic pumping in conjunction with biomimetic vacuum lungs.
    Type: Application
    Filed: March 9, 2017
    Publication date: September 7, 2017
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Luke P. Lee, Erh-Chia Yeh
  • Publication number: 20160228874
    Abstract: A Digital Separation (DS) chip for separating, digitizing and analyzing a fluid sample is presented. The DS chip includes a fluidic layer that prepares and compartmentalizes the fluid sample for analysis. Cliff structures that are adjacent to wells skim the fluid sample and prevent particles, which may interfere with fluid sample analysis, from entering the wells. Skimmed fluid sample analysis occurs in the wells and endpoint data can be collected and used to determine an original concentration of a desired component in the fluid sample very quickly. Using the described apparatus and methods, a fluid sample can be prepared, digitized, compartmentalized, assayed and the endpoint data collected in ˜30 minutes. The apparatus and methods can easily be adapted to provide parallel processing of a sample.
    Type: Application
    Filed: February 8, 2016
    Publication date: August 11, 2016
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Luke P. Lee, Erh-Chia Yeh