Patents Assigned to Porex Corporation
  • Small diameter tubular porous fiber filter
    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
  • Infusion device with a hydrophilic sintered porous plastic or hydrophilic porous fiber air stop filter
    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
  • Squeezable sample preparation device
    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
  • Liquid collection device
    Patent number: 11419587
    Abstract: A liquid specimen collection device. Various embodiments implement oral fluid collection, extraction, storage, and/or testing. The device can be used to collect fluid, and to then extract and prepare the fluid for analysis, which can eliminate human error in collection and reduce complexity in diagnostic analysis. The disclosed device may be used to collect any liquid specimen. Any instance when liquid should be collected, stored, and tested may benefit from use of this disclosure.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: August 23, 2022
    Assignee: Porex Corporation
    Inventors: Avi Robbins, Robert Carpio, III, Yuan Chang, Kathleen Fitzpatrick, Rahul Maharsia, Saman Mahdavi Shahidani, Hayden Shelly, Micah Streiff
  • Membrane-coated sintered porous media for sample collection
    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
  • Hydrophobic porous non mechanical valve for medical suction device
    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
  • Multicomponent sintered porous liquid applicator nibs
    Patent number: 10195635
    Abstract: A porous sintered multicomponent applicator nib and methods of making and using these nibs. The porous nibs are made from sintered plastic particles. These nibs are used with liquid applicators devices, medical devices, writing tools or cosmetic applicators to apply liquids containing high solids or pigments to surfaces such as metal, paper, skin, hair, tissue or a wound.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: February 5, 2019
    Assignee: Porex Corporation
    Inventor: Kevin Sporrer
  • INTEGRAL POROUS FIBER MEDIA WITH DISTINGUISHABLE DENSITY OR FIBER DIAMETERS
    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
  • MULTICOMPONENT SINTERED POROUS LIQUID APPLICATOR NIBS
    Publication number: 20170209894
    Abstract: The present application provides a porous sintered multicomponent applicator nib and methods of making and using these nibs. The porous nibs are made from sintered plastic particles. These nibs are used with liquid applicators devices, medical devices, writing tools or cosmetic applicators to apply liquids containing high solids or pigments to surfaces such as metal, paper, skin, hair, tissue or a wound.
    Type: Application
    Filed: January 25, 2017
    Publication date: July 27, 2017
    Applicant: POREX CORPORATION
    Inventor: Kevin Sporrer
  • Liquid sampling, storage, transfer and delivery device
    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
  • Sintered porous polymeric caps and vents for components of medical devices
    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
  • Liquid Sampling, Storage, Transfer and Delivery Device
    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
  • Sintered porous plastic liquid barrier media and applications thereof
    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
  • Sintered porous plastic plug for serological pipette
    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
  • Cards for sample storage and delivery comprising sintered porous plastic
    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
  • THERMALLY CONDUCTIVE POROUS MEDIA
    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
  • Cards for sample storage and delivery comprising sintered porous plastic
    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
  • Cards for Sample Storage and Delivery Comprising Sintered Porous Plastic
    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
  • Liquid Sampling, Storage, Transfer and Delivery Device
    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
  • SINTERED POROUS PLASTIC PLUG FOR SEROLOGICAL PIPETTE
    Publication number: 20150030512
    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: Application
    Filed: March 5, 2013
    Publication date: January 29, 2015
    Applicant: Porex Corporation
    Inventors: Edward Jino Kim, Christopher Lynch, Shivananada Patrick, Guoqiang Mao