Patents by Inventor Stephen Y. Chou

Stephen Y. Chou 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).

  • Publication number: 20240418736
    Abstract: The disclosure provides a kit and method using the kit for analyzing a sample, particularly blood. The kit may comprise a device (a) for sample collecting, mixing, staining, and transferring and a device (b) for sample distribution and imaging device. The device (a) comprises part (1) and an optional part (2) connected to each other. The part (1) is a capillary tube with reagent coated inside. The part (2) is used for providing an external force to suck in and/or push out the sample. The device (b) comprises two plates opposing to each other and defining an interior cavity, and a sample inlet. The interior cavity is in fluid communication with the exterior liquid sample contact area. The liquid sample flows into the spacing between the two plates through the sample inlet and a sample landing Zone that is at the exterior location of the device (b).
    Type: Application
    Filed: October 3, 2022
    Publication date: December 19, 2024
    Applicant: Essenlix Corporation
    Inventors: Stephen Y. CHOU, Wei DING
  • Patent number: 12169167
    Abstract: Disclosed are devices, kits, apparatus, and methods for rapid homogenous cell staining and imaging.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: December 17, 2024
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Ji Li, Shengjian Cai, Yu Sun
  • Publication number: 20240410824
    Abstract: The disclosure provides an apparatus, a device, and methods for improving optical analysis of a thin layer of a sample between two plates, particularly for multiple wavelengths.
    Type: Application
    Filed: February 14, 2024
    Publication date: December 12, 2024
    Applicant: Essenlix Corporation
    Inventors: Stephen Y. CHOU, Wei DING, Ji QI, Jun TIAN, Wu CHOU, Hongbing LI
  • Publication number: 20240410885
    Abstract: The present invention provides, among other things, QMAX card based assays in different forms for various analytes, offering simpler, fast, more sensitive assaying.
    Type: Application
    Filed: August 19, 2024
    Publication date: December 12, 2024
    Applicant: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Yufan Zhang, Ji Qi
  • Patent number: 12151246
    Abstract: A device and system for changing the temperature of a fluidic sample includes a first plate and a second plate movable relative to each other into an open configuration and a closed configuration, and spacers having a uniform height. The plates include a sample contact area for contacting the sample and have a configuration for changing the temperature of the sample. In the open configuration the plates are separated, and the sample is capable of being deposited onto the plates. In the closed configuration, the plates are parallel, the plates compress the sample into a layer of uniform thickness that is stagnant relative to the plates, the layer is confined by the sample contact areas of the plates and is regulated by the plates and the spacers, and the plates are configured to change the temperature of the sample at a rate of at least 10° C./sec.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: November 26, 2024
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Ji Qi, Yufan Zhang
  • Publication number: 20240377289
    Abstract: The present invention is related to the field of bio/chemical sampling, sensing, assays and applications. Particularly, the present invention is related to how to make the sampling/sensing/assay become simple to use, fast to results, highly sensitive, easy to use, using tiny sample volume (e.g. 0.5 uL or less), operated by a person without any professionals, reading by mobile-phone, or low cost, or a combination of them.
    Type: Application
    Filed: July 22, 2024
    Publication date: November 14, 2024
    Applicant: Essenlix Corporation
    Inventors: Stephen Y. CHOU, Wei DING
  • Publication number: 20240377389
    Abstract: Among other things, the present invention is related to bio/chemical sampling, sensing, assays and applications.
    Type: Application
    Filed: January 18, 2024
    Publication date: November 14, 2024
    Applicant: Essenlix Corporation
    Inventors: Stephen Y. CHOU, Wei DING, Ji LI, Yufan Zhang
  • Publication number: 20240361247
    Abstract: A homogeneous assay method that employs a device is provided. In some embodiments, the device contains a pair of plates that can be opened and closed. The sample is placed between two plates. In some embodiments, the thickness of the sample in a closed configuration, the concentration of labels, and amplification factor of the amplification surface are configured to make the label(s) bound on the amplification surface visible without washing away of the unbound labels.
    Type: Application
    Filed: March 7, 2024
    Publication date: October 31, 2024
    Applicant: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Yufan Zhang, Ji Qi, Ji Li
  • Publication number: 20240344993
    Abstract: Some embodiments of the invention provide methods that can create large area complex patterns for nanoimprint molds without or with very litter of the use of the charged beam or photon beam direct-writing of nanostructures. Some embodiments of the invention use (i) Fourier nanoimprint patterning (FNP), (ii) edge-guided nanopatterning (EGN), and (iii) nanostructure self-perfection, and their combinations.
    Type: Application
    Filed: November 29, 2023
    Publication date: October 17, 2024
    Inventors: Stephen Y. CHOU, Fei DING
  • Patent number: 12120407
    Abstract: The present disclosure relates to devices, apparatus and methods of improving the accuracy of an image-based assay. One aspect of the present invention is to sandwich a sample between two plates and add reference marks in the sample areas of the plates, with at least one of the geometric and/optical properties of the reference marks being predetermined and known, and taking images of the sample with the reference marks, and applying a machine learning model in the analysis of the image-based assay.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: October 15, 2024
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Yufan Zhang, Ji Qi, Jun Tian, Wei Dong
  • Publication number: 20240309369
    Abstract: Among other things, the present invention is related to devices and methods for improving optical analysis of a thin layer of a sample sandwiched between containing between two plates.
    Type: Application
    Filed: November 9, 2023
    Publication date: September 19, 2024
    Applicant: Essenlix Corporation
    Inventors: Stephen Y. CHOU, Wei DING, Ji QI, Jun Tian, Wu Chou
  • Patent number: 12066434
    Abstract: The present invention provides, among other things, QMAX card based assays in different forms for various analytes, offering simpler, fast, more sensitive assaying.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: August 20, 2024
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Yufan Zhang, Ji Qi
  • Patent number: 12064771
    Abstract: The disclosure provides a device and method for rapidly changing temperatures of a sample. An example of the device include: a first plate; a second plate; and a heating/cooling layer disposed on either the first or second plate. The first plate and the second plate face each other and are configured to receive a fluid sample sandwiched therebetween. The method includes depositing the fluid sample on one or both of the two plates, pressing the plates to form a thin layer of the sample, and changing and/or maintaining the temperature of the sample. The device or method can be used in, for example, PCR.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: August 20, 2024
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Hua Tan
  • Publication number: 20240253049
    Abstract: The present invention, among other things, provides the devices and methods in manipulate a sample for the purpose of assaying.
    Type: Application
    Filed: December 13, 2023
    Publication date: August 1, 2024
    Applicant: Essenlix Corporation
    Inventors: Stephen Y. CHOU, Wei DING, Ji QI, Yufan ZHANG
  • Publication number: 20240246073
    Abstract: The disclosure provides a device and a method to press a QMAX-Card to form a liquid layer. A device comprises a first arm including a pressing block and a second arm including a compartment for accommodating the QMAX-Card. Each of the first arm and the second arm comprises a first end and a second end opposing the first end, and the first arm and the second arm are joined by a hinge at the first end. The first arm is capable of rotating around the hinge toward the second arm 500 from an open position to a close position. The pressing block and the compartment face each other and are disposed at the second end. The pressing block press the QMAX-Card so that the QMAX-Card changes a closed configuration to compress a liquid sample in the QMAX-Card into a substantially uniform thin layer.
    Type: Application
    Filed: November 3, 2023
    Publication date: July 25, 2024
    Applicant: Essenlix Corporation
    Inventors: Stephen Y. CHOU, Hua TAN, Wei DING, Yanjun WANG
  • Patent number: 12044603
    Abstract: The present invention is related to the field of bio/chemical sampling, sensing, assays and applications. Particularly, the present invention is related to how to make the sampling/sensing/assay become simple to use, fast to results, highly sensitive, easy to use, using tiny sample volume (e.g. 0.5 uL or less), operated by a person without any professionals, reading by mobile-phone, or low cost, or a combination of them.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: July 23, 2024
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding
  • Publication number: 20240241075
    Abstract: Described are methods and devices that can accelerate the process and quantify the parameters for bio/chemical material samples. In some embodiments, a QMAX (Q: quantification; M: magnifying; A: adding reagents; X: acceleration) device having two or more electrodes capable of accelerating the electrical measurement process of the samples. In addition, the electrical measurement technology of the QMAX device enables for extraction, separation, and purification of sample components, such as but not limited to nucleic acids. In some embodiments, the QMAX device includes a plate for hosting a small sensing chip to facilitate a bio/chemical sensing of the sensing chip.
    Type: Application
    Filed: February 6, 2024
    Publication date: July 18, 2024
    Applicant: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Yufan Zhang
  • Publication number: 20240192137
    Abstract: A multi-mode illumination system, including: a first illumination module; a second illumination module; and a third illumination module, as disclosed herein.
    Type: Application
    Filed: February 22, 2024
    Publication date: June 13, 2024
    Applicant: Essenlix Corporation
    Inventors: Ji Qi, Stephen Y. Chou, Wei Ding
  • Patent number: 12007320
    Abstract: The present invention is related to, among other things, the devices and methods that improve the accuracy and reliability of an assay, even when the assay device and/or the operation of the assay device has certain errors, and in some embodiments the errors are random.
    Type: Grant
    Filed: June 28, 2023
    Date of Patent: June 11, 2024
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wu Chou, Xing Li, Hongbing Li, Yuecheng Zhang, Mingquan Wu, Wei Ding, Jun Tian
  • Patent number: 12007315
    Abstract: The present invention provides, among other things, devices, methods and applications of collecting, preserving, transporting, and analyzing tiny body fluids which have targeted biomarkers.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: June 11, 2024
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Yufan Zhang, Ji Qi