Patents by Inventor Guoqiang Mao

Guoqiang Mao 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: 20240123383
    Abstract: The present disclosure provides small diameter tubular porous fiber filters. These tubular porous fiber filters have many uses including but not limited a filtration medium for removing particles of 5 microns or less from liquid or air.
    Type: Application
    Filed: October 24, 2023
    Publication date: April 18, 2024
    Inventors: Nicole Elizabeth Morris-Anastasi, Michael Andrew Clendenning, Michael W. Spencer, Qiang Zhou, Guoqiang Mao
  • Publication number: 20240083192
    Abstract: The instant disclosure is directed to a heterogeneous fiber fluid reservoir for holding and delivering fluid. A reservoir may comprise a rod having a core component and a surrounding component. Each of the core component and the surrounding component may comprise fibers. The core component may have a first property, and the surrounding component may have a second property different from the first property, or the core component and the surrounding component may each have a different value or range of values for the same property. Alternatively, a reservoir may comprise a rod that includes fibers and has a cross-sectional diameter. At least one property of the rod may vary in value along the cross-sectional diameter of the rod. The property may include, for example, fiber bulk density, fiber diameter, fiber material, fiber morphology, fiber surface tension, capillary force, fluid absorption capacity, color, or combinations thereof.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 14, 2024
    Applicant: Porex Technologies Corporation
    Inventors: David Bradley HARRIS, Kevin SPORRER, Janie WIERZBICKI, Ronald Eugene BILLUPS, Yelena ROGOVA, Thomas E. HARRIS, Qiang ZHOU, Timothy Allen MARTIN, Xingguo LI, Guoqiang MAO
  • Patent number: 11908319
    Abstract: A multi-geomagnetic sensor speed measurement system comprises a geomagnetic vehicle detection module, a data transmission module, a data reception module and a backend data processing module. When measuring, the geomagnetic vehicle detection module collects the geomagnetic data when the vehicle passes and processes it to obtain temporal data; the backend processing module receives the data for data cleaning; the backend processing module selects the reference sensors and opens individual time windows; the backend processing module processes the temporal data based on the number of temporal data in the time window; in the case of duplicate-detection, a measurement threshold ? is set and the temporal data is merged based on the threshold ?; in the case of mis-detection, the data is interpolated to make up for the mis-detection; based on the alignment result, a minimum variance method is used to estimate the speed of the vehicle.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: February 20, 2024
    Assignee: XIDIAN UNIVERSITY
    Inventors: Changle Li, Zhiqiang Chen, Guoqiang Mao, Yilong Hui, Yuexu Chen
  • Patent number: 11865857
    Abstract: The instant disclosure is directed to a heterogeneous fiber fluid reservoir for holding and delivering fluid. A reservoir may comprise a rod having a core component and a surrounding component. Each of the core component and the surrounding component may comprise fibers. The core component may have a first property, and the surrounding component may have a second property different from the first property, or the core component and the surrounding component may each have a different value or range of values for the same property. Alternatively, a reservoir may comprise a rod that includes fibers and has a cross-sectional diameter. At least one property of the rod may vary in value along the cross-sectional diameter of the rod. The property may include, for example, fiber bulk density, fiber diameter, fiber material, fiber morphology, fiber surface tension, capillary force, fluid absorption capacity, color, or combinations thereof.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: January 9, 2024
    Assignee: Porex Technologies Corporation
    Inventors: David Bradley Harris, Kevin Sporrer, Janie Wierzbicki, Ronald Eugene Billups, Yelena Rogova, Thomas E. Harris, Qiang Zhou, Timothy Allen Martin, Xingguo Li, Guoqiang Mao
  • Patent number: 11833461
    Abstract: The present disclosure provides small diameter tubular porous fiber filters. These tubular porous fiber filters have many uses including but not limited a filtration medium for removing particles of 5 microns or less from liquid or air.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: December 5, 2023
    Assignee: Porex Corporation
    Inventors: Nicole Elizabeth Morris-Anastasi, Michael Andrew Clendenning, Michael W. Spencer, Qiang Zhou, Guoqiang Mao
  • Patent number: 11766525
    Abstract: The present invention provides infusion devices, such as intravascular (IV) devices, comprising a hydrophilic sintered porous plastic filter or a hydrophilic porous fiber filter which are effective at stopping or greatly reducing transmission of air through the filter.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: September 26, 2023
    Assignee: Porex Corporation
    Inventors: Guoqiang Mao, Jack Cam Chan
  • Patent number: 11618017
    Abstract: An improved biological sample preparation device and method of using the device, the device including a squeezable tube and a tip assembled to the squeezable tube. The tip includes a filter and a wick configured to enable controlled delivery to a diagnostic device by capillary action. The device provides precise and repeatable sample volume dispensing control, reduces potential contamination in the working environment, increases ease of use, and improves safety for healthcare workers.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: April 4, 2023
    Assignee: Porex Corporation
    Inventors: Asa C. Burke, Rene Desquenne, Guoqiang Mao
  • Publication number: 20230001405
    Abstract: An improved biological sample preparation device and method of using the device. The disclosed device provides improved sample volume control, reduces potential contamination in the working environment, increases ease of use, and improves safety for healthcare workers.
    Type: Application
    Filed: June 28, 2022
    Publication date: January 5, 2023
    Inventors: Asa C. Burke, Rene Desquenne, Guoqiang Mao
  • Publication number: 20220413005
    Abstract: The present disclosure provides a method for vehicle speed estimation using multiple geomagnetic sensors, and mainly solves the problem of low accuracy of vehicle speed estimation in existing single-geomagnetic, dual-geomagnetic and multi-geomagnetic scenarios. There are M vehicle detection modules (1), and the vehicle detection modules are deployed along a roadside at equal intervals and configured to detect processes that a vehicle approaches and leaves a detection point, record the time when the vehicle approaches the detection point and send time data to a data processing module (2).
    Type: Application
    Filed: June 28, 2022
    Publication date: December 29, 2022
    Inventors: Changle LI, Gang Wang, Guoqiang Mao, Yilong Hui, Yuexu Chen, Qingwei Cheng, Runsen He
  • Publication number: 20220323933
    Abstract: A sintered elastomeric material combined with at least one absorbent material and formed into a thin compressible sheet. The material finds particular use in venting or filtering gasses. In specific examples, the elastomeric material may be a thermoplastic elastomer and the absorbent material may be carbon. When an amount of carbon (or any other type of conductive material) included with the elastomeric material is high enough, the material may also find use as a conductive material.
    Type: Application
    Filed: September 23, 2020
    Publication date: October 13, 2022
    Inventors: Saman Mahdavi Shahidani, Xingguo Li, Luis Angel Pagán, Rahul Maharsia, Guoqiang Mao
  • Publication number: 20220238016
    Abstract: A multi-geomagnetic sensor speed measurement system comprises a geomagnetic vehicle detection module, a data transmission module, a data reception module and a backend data processing module. When measuring, the geomagnetic vehicle detection module collects the geomagnetic data when the vehicle passes and processes it to obtain temporal data; the backend processing module receives the data for data cleaning; the backend processing module selects the reference sensors and opens individual time windows; the backend processing module processes the temporal data based on the number of temporal data in the time window; in the case of duplicate-detection, a measurement threshold ? is set and the temporal data is merged based on the threshold ?; in the case of mis-detection, the data is interpolated to make up for the mis-detection; based on the alignment result, a minimum variance method is used to estimate the speed of the vehicle.
    Type: Application
    Filed: July 30, 2020
    Publication date: July 28, 2022
    Inventors: Changle LI, Zhiqiang CHEN, Guoqiang MAO, Yilong HUI, Yuexu CHEN
  • Publication number: 20210370706
    Abstract: The instant disclosure is directed to a heterogeneous fiber fluid reservoir for holding and delivering fluid. A reservoir may comprise a rod having a core component and a surrounding component. Each of the core component and the surrounding component may comprise fibers. The core component may have a first property, and the surrounding component may have a second property different from the first property, or the core component and the surrounding component may each have a different value or range of values for the same property. Alternatively, a reservoir may comprise a rod that includes fibers and has a cross-sectional diameter. At least one property of the rod may vary in value along the cross-sectional diameter of the rod. The property may include, for example, fiber bulk density, fiber diameter, fiber material, fiber morphology, fiber surface tension, capillary force, fluid absorption capacity, color, or combinations thereof.
    Type: Application
    Filed: September 20, 2019
    Publication date: December 2, 2021
    Inventors: David Bradley Harris, Kevin Sporrer, Janie Wierzbicki, Ronald Eugene Billups, Yelena Rogova, Thomas E. Harris, Qiang Zhou, Timothy Allen Martin, Xingguo Li, Guoqiang Mao
  • Publication number: 20210350699
    Abstract: The invention discloses a method for vehicle classification using multiple geomagnetic sensors, which mainly solves the problems of high cost, complex processing process and difficulty in large-scale deployment of the existing vehicle classification methods.
    Type: Application
    Filed: January 21, 2021
    Publication date: November 11, 2021
    Inventors: Changle Li, Yunpeng Wang, Guoqiang Mao, Yilong Hui, Zhiqiang Chen, Zhen Liu, Yuexu Chen
  • Patent number: 11141951
    Abstract: The present application provides devices and methods of making and using these devices. The devices comprise a sintered porous polymeric material, a porous membrane attached to at least a portion of the sintered porous polymeric material, and optionally a housing which surrounds at least a portion of the sintered porous polymeric material. The devices can be used for sample collection, purification and transfer.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: October 12, 2021
    Assignee: Porex Corporation
    Inventors: Guoqiang Mao, Kyle Thomas Harris, Katlin Marie Lumme, Jeffrey John Williams
  • Publication number: 20210041473
    Abstract: The present application provides robotic liquid handling and assay systems which can selectively and efficiently insert porous media into liquid handling devices, particularly into pipette tips.
    Type: Application
    Filed: March 28, 2019
    Publication date: February 11, 2021
    Inventors: Maria DeCapua Dicioccio, Guoqiang Mao
  • Patent number: 10881591
    Abstract: The instant disclosure relates to an integral porous fiber media with distinguishable distribution of fiber density, fiber diameter and capillary force. The instant disclosure further relates to a fiber porous media that includes multiple density portions. The disclosed media is a single piece, such that the different density portions are not separable. The disclosed media provides improved liquid delivery properties for a specific liquid delivery device.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: January 5, 2021
    Assignee: POREX TECHNOLOGIES CORPORATION
    Inventors: David Harris, Yelena Rogova, Qiang Zhou, Guoqiang Mao
  • Publication number: 20200282351
    Abstract: The present disclosure provides small diameter tubular porous fiber filters. These tubular porous fiber filters have many uses including but not limited a filtration medium for removing particles of 5 microns or less from liquid or air.
    Type: Application
    Filed: September 7, 2018
    Publication date: September 10, 2020
    Inventors: Nicole Elizabeth Morris-Anastasi, Michael Andrew Clendenning, Michael W. Spencer, Qiang Zhou, Guoqiang Mao
  • Publication number: 20200069029
    Abstract: The present application provides sintered porous elastomeric liquid applicators with or without flocking fibers that provide improved liquid and gel delivery properties and a comfortable experience for the user of the applicators when applying liquid to a surface, such as skin.
    Type: Application
    Filed: February 19, 2018
    Publication date: March 5, 2020
    Inventors: Thomas Oliver Knight, III, Saman Mahdavi Shahidani, Garland Timberlake Meredith, Xingguo Li, Timothy Martin, Avi Melech Robbins, Guoqiang Mao
  • Publication number: 20200061307
    Abstract: The present invention provides infusion devices, such as intravascular (IV) devices, comprising a hydrophilic sintered porous plastic filter or a hydrophilic porous fiber filter which are effective at stopping or greatly reducing transmission of air through the filter.
    Type: Application
    Filed: May 15, 2018
    Publication date: February 27, 2020
    Inventors: Guoqiang Mao, Jack Cam Chan
  • Patent number: 10238777
    Abstract: The present invention provides a porous non mechanical valve which retards or prevents the passage of bodily fluids and is resistant to being occluded or blocked by exposure to the surgical fumes or aerosols encountered during surgical procedures.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: March 26, 2019
    Assignee: Porex Corporation
    Inventors: Michael Arthur, Guoqiang Mao