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).
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Patent number: 10947328Abstract: 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: GrantFiled: April 27, 2020Date of Patent: March 16, 2021Assignee: Ascensia Diabetes Care Holdings AGInventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
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Publication number: 20200255552Abstract: 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: ApplicationFiled: April 27, 2020Publication date: August 13, 2020Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
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Patent number: 10662264Abstract: 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: GrantFiled: March 8, 2018Date of Patent: May 26, 2020Assignee: Ascensia Diabetes Care Holdings AGInventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
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Patent number: 10585059Abstract: 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: GrantFiled: December 18, 2017Date of Patent: March 10, 2020Assignee: Ascensia Diabetes Care Holdings AGInventors: Yuan Wang, Raeann Gifford, Hualin Jiang, Jeffery S. Reynolds, Jiangfeng Fei
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Patent number: 10307092Abstract: 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: GrantFiled: August 11, 2016Date of Patent: June 4, 2019Assignee: Ascenia Diabetes Care Holdings AGInventors: Mu Wu, Jiangfeng Fei, Serban Peteu, Hoi-Cheong Steve Sun, Raeann Gifford
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Patent number: 10022080Abstract: 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: GrantFiled: October 9, 2015Date of Patent: July 17, 2018Assignee: Ascensia Diabetes Care Holdings AGInventors: Swetha Chinnayelka, Jiangfeng Fei, Narasinha Parasnis, Serban Peteu, Yuan Wang
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Publication number: 20180194877Abstract: 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: ApplicationFiled: March 8, 2018Publication date: July 12, 2018Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
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Publication number: 20180106751Abstract: 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: ApplicationFiled: December 18, 2017Publication date: April 19, 2018Inventors: Yuan Wang, Raeann Gifford, Hualin Jiang, Jeffery S. Reynolds, Jiangfeng Fei
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Patent number: 9944725Abstract: 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: GrantFiled: October 26, 2016Date of Patent: April 17, 2018Assignee: Ascensia Diabetes Care Holdings AGInventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
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Patent number: 9874536Abstract: 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: GrantFiled: April 16, 2015Date of Patent: January 23, 2018Assignee: Ascensia Diabetes Care Holdings AGInventors: Yuan Wang, Raeann Gifford, Hualin Jiang, Jeffery S. Reynolds, Jiangfeng Fei
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Publication number: 20170044276Abstract: 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: ApplicationFiled: October 26, 2016Publication date: February 16, 2017Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
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Patent number: 9547005Abstract: 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: GrantFiled: April 17, 2014Date of Patent: January 17, 2017Assignee: ASCENSIA DIABETES CARE HOLDINGS AGInventors: Swetha Chinnayelka, Jiangfeng Fei, Yuan Wang, Narasinha Parasnis, Hoi-Cheong Steve Sun, Raeann Gifford, Steven C. Charlton
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Publication number: 20160345882Abstract: 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: ApplicationFiled: August 11, 2016Publication date: December 1, 2016Inventors: Mu Wu, Jiangfeng Fei, Serban Peteu, Hoi-Cheong Steve Sun, Raeann Gifford
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Patent number: 9505884Abstract: 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: GrantFiled: December 9, 2015Date of Patent: November 29, 2016Assignee: Ascensia Diabetes Care Holdings AGInventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
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Patent number: 9439585Abstract: 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: GrantFiled: February 3, 2009Date of Patent: September 13, 2016Assignee: Ascensia Diabetes Care Holdings AGInventors: Mu Wu, Jiangfeng Fei, Serban Peteu, Hoi-Cheong Steve Sun, Raeann Gifford
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Publication number: 20160083519Abstract: 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: ApplicationFiled: December 9, 2015Publication date: March 24, 2016Inventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
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Publication number: 20160029935Abstract: 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: ApplicationFiled: October 9, 2015Publication date: February 4, 2016Inventors: Swetha Chinnayelka, Jiangfeng Fei, Narasinha Parasnis, Serban Peteu, Yuan Wang
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Patent number: 9238717Abstract: 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: GrantFiled: April 23, 2014Date of Patent: January 19, 2016Assignee: BAYER HEALTHCARE LLCInventors: Jiangfeng Fei, William Chiang, Frank Kerrigan, Stuart Green, Craig Robson, Howard Easterfield
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Patent number: 9173597Abstract: 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: GrantFiled: September 18, 2009Date of Patent: November 3, 2015Assignee: BAYER HEALTHCARE LLCInventors: Swetha Chinnayelka, Jiangfeng Fei, Narasinha Parasnis, Serban Peteu, Yuan Wang
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Publication number: 20150219587Abstract: 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: ApplicationFiled: April 16, 2015Publication date: August 6, 2015Inventors: Yuan Wang, Raeann Gifford, Hualin Jiang, Jeffery S. Reynolds, Jiangfeng Fei