Patents by Inventor Jiangfeng Fei

Jiangfeng Fei 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).

  • Patent number: 10947328
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: March 16, 2021
    Assignee: Ascensia Diabetes Care Holdings AG
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Publication number: 20200255552
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Patent number: 10662264
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: May 26, 2020
    Assignee: Ascensia Diabetes Care Holdings AG
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Patent number: 10585059
    Abstract: An electrochemical test sensor for detecting the concentration of an analyte in a fluid sample. The electrochemical test sensor includes a housing that has a first end and a second opposing end. The housing includes an opening at the first end to receive a fluid test sample. An electrode assembly includes a substrate, a working electrode, a counter electrode and a reagent. The substrate has a first surface and an opposing second surface. The working electrode is disposed on the first surface of the substrate, and the counter electrode is disposed on the second surface of the substrate. The electrode assembly is positioned within the housing to define a reaction channel. The electrochemical test sensor may be used with a removable lancet mechanism or integrated within a lancet mechanism to form one integral unit.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: March 10, 2020
    Assignee: Ascensia Diabetes Care Holdings AG
    Inventors: Yuan Wang, Raeann Gifford, Hualin Jiang, Jeffery S. Reynolds, Jiangfeng Fei
  • Patent number: 10307092
    Abstract: An analyte sensor is provided that comprises a substrate which includes a semiconductor material. Embodiments may include a core of a conductive material, and a cladding of a semiconductor material, in which the cladding may form at least a portion of a conducting path for a working electrode of the analyte sensor. Method of manufacturing and using the analyte sensor are described, as are numerous other aspects.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: June 4, 2019
    Assignee: Ascenia Diabetes Care Holdings AG
    Inventors: Mu Wu, Jiangfeng Fei, Serban Peteu, Hoi-Cheong Steve Sun, Raeann Gifford
  • Patent number: 10022080
    Abstract: In some aspects, an analyte sensor is provided for detecting an analyte concentration level in a bio-fluid sample. The analyte sensor may include one or more conductors received in a hollow portion of a hollow member. The first conductor may be made, at least in part, of a semiconductor material and an active region may be provided in contact with at least the first conductor. The analyte sensor may, in one aspect, include a lancet and an integrated sensor. Manufacturing methods and apparatus and systems utilizing the analyte sensors are provided, as are numerous other aspects.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: July 17, 2018
    Assignee: Ascensia Diabetes Care Holdings AG
    Inventors: Swetha Chinnayelka, Jiangfeng Fei, Narasinha Parasnis, Serban Peteu, Yuan Wang
  • Publication number: 20180194877
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Application
    Filed: March 8, 2018
    Publication date: July 12, 2018
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Publication number: 20180106751
    Abstract: An electrochemical test sensor for detecting the concentration of an analyte in a fluid sample. The electrochemical test sensor includes a housing that has a first end and a second opposing end. The housing includes an opening at the first end to receive a fluid test sample. An electrode assembly includes a substrate, a working electrode, a counter electrode and a reagent. The substrate has a first surface and an opposing second surface. The working electrode is disposed on the first surface of the substrate, and the counter electrode is disposed on the second surface of the substrate. The electrode assembly is positioned within the housing to define a reaction channel. The electrochemical test sensor may be used with a removable lancet mechanism or integrated within a lancet mechanism to form one integral unit.
    Type: Application
    Filed: December 18, 2017
    Publication date: April 19, 2018
    Inventors: Yuan Wang, Raeann Gifford, Hualin Jiang, Jeffery S. Reynolds, Jiangfeng Fei
  • Patent number: 9944725
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: April 17, 2018
    Assignee: Ascensia Diabetes Care Holdings AG
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Patent number: 9874536
    Abstract: An electrochemical test sensor for detecting the concentration of an analyte in a fluid sample. The electrochemical test sensor includes a housing that has a first end and a second opposing end. The housing includes an opening at the first end to receive a fluid test sample. An electrode assembly includes a substrate, a working electrode, a counter electrode and a reagent. The substrate has a first surface and an opposing second surface. The working electrode is disposed on the first surface of the substrate, and the counter electrode is disposed on the second surface of the substrate. The electrode assembly is positioned within the housing to define a reaction channel. The electrochemical test sensor may be used with a removable lancet mechanism or integrated within a lancet mechanism to form one integral unit.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: January 23, 2018
    Assignee: Ascensia Diabetes Care Holdings AG
    Inventors: Yuan Wang, Raeann Gifford, Hualin Jiang, Jeffery S. Reynolds, Jiangfeng Fei
  • Publication number: 20170044276
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Application
    Filed: October 26, 2016
    Publication date: February 16, 2017
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Patent number: 9547005
    Abstract: A test meter system for testing a characteristic of a fluid, the test meter system including a test meter having a housing with an opening adapted to accept a test strip, an interrogation coil within the housing, a pick-up coil within the housing, and a test strip including at least one magneto-elastic-resonance sensor. When the test strip is within the opening, the interrogation coil may utilize magneto-elastic-resonance technology to interrogate the magneto-elastic-resonance sensor and the pick-up coil may be used to sense a resultant oscillation frequency of the magneto-elastic-resonance sensor, the resultant oscillation frequency associated with the characteristic. The test strip may include a plurality of sensors. The sensors may be coated with a coating sensitive to a characteristic of the fluid, where the interrogation reveals information about the fluid characteristic.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: January 17, 2017
    Assignee: ASCENSIA DIABETES CARE HOLDINGS AG
    Inventors: Swetha Chinnayelka, Jiangfeng Fei, Yuan Wang, Narasinha Parasnis, Hoi-Cheong Steve Sun, Raeann Gifford, Steven C. Charlton
  • Publication number: 20160345882
    Abstract: An analyte sensor is provided that comprises a substrate which includes a semiconductor material. Embodiments may include a core of a conductive material, and a cladding of a semiconductor material, in which the cladding may form at least a portion of a conducting path for a working electrode of the analyte sensor. Method of manufacturing and using the analyte sensor are described, as are numerous other aspects.
    Type: Application
    Filed: August 11, 2016
    Publication date: December 1, 2016
    Inventors: Mu Wu, Jiangfeng Fei, Serban Peteu, Hoi-Cheong Steve Sun, Raeann Gifford
  • Patent number: 9505884
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: November 29, 2016
    Assignee: Ascensia Diabetes Care Holdings AG
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Patent number: 9439585
    Abstract: An analyte sensor is provided that comprises a substrate which includes a semiconductor material. Embodiments may include a core of a conductive material, and a cladding of a semiconductor material, in which the cladding may form at least a portion of a conducting path for a working electrode of the analyte sensor. Method of manufacturing and using the analyte sensor are described, as are numerous other aspects.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: September 13, 2016
    Assignee: Ascensia Diabetes Care Holdings AG
    Inventors: Mu Wu, Jiangfeng Fei, Serban Peteu, Hoi-Cheong Steve Sun, Raeann Gifford
  • Publication number: 20160083519
    Abstract: A non-leaching mediator may include a polymer having a polymeric backbone, and a plurality of phenothiazine groups bonded to the polymeric backbone. The plurality of phenothiazine groups may include at least one of a phenothiazine group having the general formula (IV): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded, and a phenothiazine group having the general formula (V): and salts thereof, where n is about 9 and “R” represents the polymeric backbone to which the phenothiazine group is bonded.
    Type: Application
    Filed: December 9, 2015
    Publication date: March 24, 2016
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Publication number: 20160029935
    Abstract: In some aspects, an analyte sensor is provided for detecting an analyte concentration level in a bio-fluid sample. The analyte sensor may include one or more conductors received in a hollow portion of a hollow member. The first conductor may be made, at least in part, of a semiconductor material and an active region may be provided in contact with at least the first conductor. The analyte sensor may, in one aspect, include a lancet and an integrated sensor. Manufacturing methods and apparatus and systems utilizing the analyte sensors are provided, as are numerous other aspects.
    Type: Application
    Filed: October 9, 2015
    Publication date: February 4, 2016
    Inventors: Swetha Chinnayelka, Jiangfeng Fei, Narasinha Parasnis, Serban Peteu, Yuan Wang
  • Patent number: 9238717
    Abstract: A non-leaching mediator may include a polymer comprising the general formula (VIII): and salts thereof, where R? is an organic group, m is 0 or 1, n is about 9, and x and y independently are an integer from 1 to 10,000.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: January 19, 2016
    Assignee: BAYER HEALTHCARE LLC
    Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
  • Patent number: 9173597
    Abstract: In some aspects, an analyte sensor is provided for detecting an analyte concentration level in a bio-fluid sample. The analyte sensor may include one or more conductors received in a hollow portion of a hollow member. The first conductor may be made, at least in part, of a semiconductor material and an active region may be provided in contact with at least the first conductor. The analyte sensor may, in one aspect, include a lancet and an integrated sensor. Manufacturing methods and apparatus and systems utilizing the analyte sensors are provided, as are numerous other aspects.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: November 3, 2015
    Assignee: BAYER HEALTHCARE LLC
    Inventors: Swetha Chinnayelka, Jiangfeng Fei, Narasinha Parasnis, Serban Peteu, Yuan Wang
  • Publication number: 20150219587
    Abstract: An electrochemical test sensor for detecting the concentration of an analyte in a fluid sample. The electrochemical test sensor includes a housing that has a first end and a second opposing end. The housing includes an opening at the first end to receive a fluid test sample. An electrode assembly includes a substrate, a working electrode, a counter electrode and a reagent. The substrate has a first surface and an opposing second surface. The working electrode is disposed on the first surface of the substrate, and the counter electrode is disposed on the second surface of the substrate. The electrode assembly is positioned within the housing to define a reaction channel. The electrochemical test sensor may be used with a removable lancet mechanism or integrated within a lancet mechanism to form one integral unit.
    Type: Application
    Filed: April 16, 2015
    Publication date: August 6, 2015
    Inventors: Yuan Wang, Raeann Gifford, Hualin Jiang, Jeffery S. Reynolds, Jiangfeng Fei