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: 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
  • Publication number: 20180360697
    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: Application
    Filed: May 31, 2018
    Publication date: December 20, 2018
    Applicant: POREX CORPORATION
    Inventors: David HARRIS, Yelena Rogova, Qiang Zhou, Guoqiang Mao
  • Publication number: 20180036994
    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: Application
    Filed: February 18, 2016
    Publication date: February 8, 2018
    Inventors: Guoqiang Mao, Kyle Thomas Harris, Katlin Marie Lumme, Jeffrey John Williams
  • Patent number: 9696241
    Abstract: The present invention provides a liquid sampling, storage, transfer and delivery device comprising housing containing a porous nib. The porous nib in the device contacts the sample, collects the sample, stores the sample, transports the sample inside its porous matrix and releases the sample from the porous matrix upon demand.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: July 4, 2017
    Assignee: POREX CORPORATION
    Inventors: Guoqiang Mao, James P. Wingo
  • Patent number: 9533136
    Abstract: The present application provides a device and methods of making and using these devices. The devices comprise porous caps and porous vents made from sintered porous polymeric media comprising plastic particles, elastomeric particles or a combination thereof. These devices are used with medical devices or components thereof to provide ease of use, resistance to infection, sterilization and venting.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: January 3, 2017
    Assignee: Porex Corporation
    Inventors: William G. Midgette, GuoQiang Mao, Avi Robbins, Jack Chan
  • Publication number: 20160349153
    Abstract: The present invention provides a liquid sampling, storage, transfer and delivery device comprising housing containing a porous nib. The porous nib in the device contacts the sample, collects the sample, stores the sample, transports the sample inside its porous matrix and releases the sample from the porous matrix upon demand.
    Type: Application
    Filed: August 11, 2016
    Publication date: December 1, 2016
    Applicant: Porex Corporation
    Inventors: Guoqiang Mao, James P. Wingo
  • Patent number: 9370731
    Abstract: This application discloses porous self-sealing media comprising a sintered mixture of an absorbent material and a thermoplastic. The self-sealing media block passage of organic solvents or organic solvents in aqueous mixtures, wherein the organic solvents are at concentrations greater than about 40%. The self-sealing media also block acidic solutions. The self-sealing media are useful in a variety of applications such as a pipette tip filter, in line filter, vent, non-mechanical check valve, safety valve, and suction canister.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: June 21, 2016
    Assignee: Porex Corporation
    Inventor: Guoqiang Mao
  • Patent number: 9346046
    Abstract: The present invention provides sintered porous plastic plugs for use in filtered serological pipettes which facilitate manufacture or assembly of the filtered serological pipettes. In one embodiment, a sintered porous plastic plug of the present invention comprises plastic and a cylindrical body, a first end and a second end, the first end having a cross-sectional area less than the cross-sectional area of the cylindrical body, and the second end having a cross-sectional area less than the cross-sectional area of the cylindrical body.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: May 24, 2016
    Assignee: Porex Corporation
    Inventors: Edward Jino Kim, Christopher Lynch, Shivananada Patrick, Guoqiang Mao
  • Publication number: 20160135657
    Abstract: Embodiments of the present disclosure relate generally to porous devices that are useful for various cleaning purposes or other uses. The devices may be formed with, impregnated with, pre-wetted with, or otherwise associated with one or more agents, such as a dental treatment agent, a nail treatment agent, a disinfectant, a lubricant, or any other cleaning agent. The devices may find particular use for cleaning somewhat delicate areas, such as gum tissues, nail cuticle beds, electronic devices, or any other uses that benefit from a self-supporting structure that can withstand pressure but that also benefit from a resilient treatment surface.
    Type: Application
    Filed: October 16, 2015
    Publication date: May 19, 2016
    Inventors: Guoqiang Mao, Michael Arthur, Jerry Dean Raney
  • Patent number: 9198609
    Abstract: This application discloses cards comprising sintered porous plastic which may be employed in liquid sample collection, storage, transport and/or delivery to an analytical device. Sintered porous plastic materials provide a unique porous structure, an inert substrate, precise liquid holding capability, are quick drying, and easy to cut and handle.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: December 1, 2015
    Assignee: POREX CORPORATION
    Inventors: Guoqiang Mao, James P. Wingo
  • Publication number: 20150258504
    Abstract: The present invention provides porous composite materials and methods of making and using the same. In one embodiment, a porous composite material comprises a porous substrate comprising a first polymeric material and at least one particle or fiber of a second polymeric material and a third polymeric material disposed on at least one surface of the porous substrate and having at least one point of attachment the to the at least one particle or fiber of the second polymeric material.
    Type: Application
    Filed: May 29, 2015
    Publication date: September 17, 2015
    Inventors: Thomas H. Ramsey, Michael Andrew Clendenning, Alan Walton, Jerry Dean Raney, Jacob Shorr, Guoqiang Mao
  • Publication number: 20150232732
    Abstract: The present invention relates to compositions comprising a thermally conductive porous media, optionally linked to a heat spreading interfacial material. These compositions provide heat dissipation from a heat source. These compositions can be used in a variety of applications including effective removal of heat from electronic and other enclosed devices.
    Type: Application
    Filed: September 14, 2012
    Publication date: August 20, 2015
    Applicant: Porex Corporation
    Inventors: Gerald A. DiBattista, Tamara Lee Mace, James P. Wingo, Guoqiang Mao
  • Patent number: 9101311
    Abstract: This application discloses cards comprising sintered porous plastic which may be employed in liquid sample collection, storage, transport and/or delivery to an analytical device. Sintered porous plastic materials provide a unique porous structure, an inert substrate, precise liquid holding capability, are quick drying, and easy to cut and handle.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: August 11, 2015
    Assignee: POREX CORPORATION
    Inventors: Guoqiang Mao, James P. Wingo
  • Publication number: 20150185211
    Abstract: This application discloses cards comprising sintered porous plastic which may be employed in liquid sample collection, storage, transport and/or delivery to an analytical device. Sintered porous plastic materials provide a unique porous structure, an inert substrate, precise liquid holding capability, are quick drying, and easy to cut and handle.
    Type: Application
    Filed: March 11, 2015
    Publication date: July 2, 2015
    Applicant: POREX CORPORATION
    Inventors: Guoqiang Mao, James P. Wingo
  • Publication number: 20150079614
    Abstract: The present invention provides a liquid sampling, storage, transfer and delivery device comprising housing containing a porous nib. The porous nib in the device contacts the sample, collects the sample, stores the sample, transports the sample inside its porous matrix and releases the sample from the porous matrix upon demand.
    Type: Application
    Filed: November 21, 2014
    Publication date: March 19, 2015
    Applicant: POREX CORPORATION
    Inventors: Guoqiang Mao, James P. Wingo