Patents by Inventor Ji Qi

Ji Qi 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: 20250239628
    Abstract: Carbon precursors for use in fabricating carbon supports with a graphitic structure. The carbon precursor may include defective amorphous carbon spheres having a mass loss percentage compared to defect-free amorphous carbon spheres. The defective amorphous carbon spheres are capable of forming a single-layer graphitic structure for use as the carbon support. The carbon graphitic structure precursor may include amorphous carbon nanoclusters having a nominal nanocluster diameter of less than 3 nanometers. The amorphous carbon nanoclusters are capable of forming a single-layer graphitic structure for use as the carbon support.
    Type: Application
    Filed: January 22, 2024
    Publication date: July 24, 2025
    Inventors: Ji QI, Karim GADELRAB, Nicola MOLINARI
  • Patent number: 12350680
    Abstract: The present invention provides devices, systems, and methods for rapid and easy-to-use in sample thermal cycling or temperature changes for the facilitation of reactions such as but not limited to PCR.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: July 8, 2025
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Yufan Zhang, Ji Qi
  • Patent number: 12350676
    Abstract: One aspect of the present invention is to provide the device and methods for performing an assay that uses the multiplexing of sample thicknesses on the same plate. The sample thickness multiplexing can offer many information that is unavailable in using a single sample thickness.
    Type: Grant
    Filed: August 15, 2023
    Date of Patent: July 8, 2025
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Ji Qi, Yufan Zhang
  • Patent number: 12326396
    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 two plates.
    Type: Grant
    Filed: November 9, 2023
    Date of Patent: June 10, 2025
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Ji Qi, Jun Tian, Wu Chou
  • Patent number: 12320749
    Abstract: A multi-mode illumination system, including: a first illumination module; a second illumination module; and a third illumination module, as disclosed herein.
    Type: Grant
    Filed: February 22, 2024
    Date of Patent: June 3, 2025
    Assignee: Essenlix Corporation
    Inventors: Ji Qi, Stephen Y. Chou, Wei Ding
  • Patent number: 12313836
    Abstract: A microscopy imaging system and methods for improving an assaying of a sample is disclosed.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: May 27, 2025
    Assignee: Essenlix Corporation
    Inventors: Ji Qi, Stephen Y. Chou, Wu Chou, Wei Ding
  • Publication number: 20250150692
    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: Application
    Filed: October 14, 2024
    Publication date: May 8, 2025
    Applicant: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Yufan Zhang, Ji Qi, Jun Tian, Wei Dong
  • Patent number: 12276584
    Abstract: Disclosed are devices and methods for analyzing an analyte, such as white blood cells in liquid samples.
    Type: Grant
    Filed: May 1, 2023
    Date of Patent: April 15, 2025
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Ji Qi
  • Patent number: 12270810
    Abstract: The present invention provides QMAX based devices, kits, and methods for rapid, easy to use, and/or inexpensive detection of assaying.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: April 8, 2025
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Yufan Zhang, Ji Qi
  • Patent number: 12265019
    Abstract: Disclosed is an optical system for interrogating a sample, an optical system for measuring the spectrum of a beam of light, an optical system for measuring the spectrum of two beams of light, a compact imaging-based sensor or sensors, and combinations thereof.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: April 1, 2025
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Ji Qi, Jun Tian
  • Publication number: 20250091051
    Abstract: The present invention provides devices, systems, and methods for rapid sample thermal cycle changes for the facilitation of reactions such as but not limited to PCR.
    Type: Application
    Filed: November 25, 2024
    Publication date: March 20, 2025
    Applicant: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Ji Qi, Yufan Zhang
  • Patent number: 12248533
    Abstract: The present disclosure relates to devices, apparatus and methods of improving the accuracy of image-based assay, that uses imaging system having uncertainties or deviations (imperfection) compared with an ideal imaging system. One aspect of the present invention is to add the monitoring marks on the sample holder, with at least one of their geometric and/optical properties of the monitoring marks under predetermined and known, and taking images of the sample with the monitoring marks, and train a machine learning model using the images with the monitoring mark.
    Type: Grant
    Filed: January 24, 2023
    Date of Patent: March 11, 2025
    Assignee: Essenlix Corporation
    Inventors: Xing Li, Wu Chou, Stephen Y. Chou, Wei Ding, Ji Qi
  • Publication number: 20250076293
    Abstract: Among other things, the present invention is related to devices and methods of performing biological and chemical assays, such as but not limited to immunoassays and nucleic assay acid, particularly the homogeneous assay that does not use the step of wash and that is fast (e.g. 60 seconds from dropping a sample to displaying results).
    Type: Application
    Filed: November 20, 2024
    Publication date: March 6, 2025
    Applicant: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Yufan Zhang, Ji Li, Ji Qi, Jun Tian
  • Patent number: 12226769
    Abstract: The disclosure relates to a device and method of using the device for performing biological and chemical assays that require an easy sample manipulation and/or a rapid change or a rapid thermal cycling of a sample temperature (e.g., Polymerase Chain Reaction (PCR) for amplifying nucleic acids). The device includes a first plate, a second plate, a plurality of spacers, and at least one clamp. The method includes obtaining the device, depositing a sample onto a sample contact area of at least one of the first and second plates of the device in an open configuration, closing the two plates into a closed configuration and placing the clamp in the active mode, and rapidly changing the temperature of the sample portion encircled by rings.
    Type: Grant
    Filed: March 14, 2023
    Date of Patent: February 18, 2025
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Ji Qi, Hua Tan, Yufan Zhang
  • Patent number: 12181472
    Abstract: Among other things, the present invention is related to devices and methods of performing biological and chemical assays, such as but not limited to immunoassays and nucleic assay acid, particularly the homogeneous assay that does not use the step of wash and that is fast (e.g. 60 seconds from dropping a sample to displaying results).
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: December 31, 2024
    Assignee: Essenlix Corporation
    Inventors: Stephen Y. Chou, Wei Ding, Yufan Zhang, Ji Li, Ji Qi, Jun Tian
  • Patent number: 12177459
    Abstract: Given an input image in a high dynamic range (HDR) which is mapped to a second image in a second dynamic range using a reshaping function, to improve coding efficiency, a reshaping function generator may adjust the codeword range of the HDR input under certain criteria, such as for noisy HDR images with a relatively-small codeword range. An example of generating a scaler for adjusting the HDR codeword range based on the original codeword range and a metric of the percentage of edge-points in the HDR image is provided. The adjusted reshaping function allows for more efficient rate control during the compression of reshaped images.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: December 24, 2024
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Harshad Kadu, Ji Qi, Guan-Ming Su
  • 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: 12162889
    Abstract: A compound comprises a donor and an acceptor, wherein at least one donor (“D”) and at least one acceptor (“A”) may be arranged in an order of D-A; D-A-D; A-D-A; D-D-A-D-D; A-A-D-A-A; D-A-D-A-D; and A-D-A-D-A. The compound may be selected from the group consisting of: MTPE-TP, MTPE-TT, TPE-TP A-TT, PTZ-BT-TP A, NPB-TQ, TPE-TQ-A, MTPE-BTSe, DCDPP-2TP A, DCDPP-2TPA4M, DCDP-2TPA, DCDP-2TPA4M, TTS, ROpen-DTE-TPECM, and RClosed-DTE-TPECM. The compound may be used as a probe and may be functionalized with special targeted groups to image biological species. As non-limiting examples, the compound may be used in cellular cytoplasms or tissue imaging, blood vessel imaging, in vivo fluorescence imaging, brain vascular imaging, sentinel lymph node mapping, and tumor imaging, and the compound may be used as a photoacoustic agent.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: December 10, 2024
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Benzhong Tang, Ji Qi, Ming Chen, Wei Qin, Pengfei Zhang
  • 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