Patents by Inventor Joshua C. Schaefer

Joshua C. Schaefer 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: 20210177311
    Abstract: Apparatuses and methods for improving the accuracy of an analyte sensor are disclosed. The sensor may include a photodetector and a low angle sensitive (LAS) optical filter. The photodetector may be configured to convert received light into current indicative of the intensity of the received light. The LAS optical filter may be configured to prevent light having a wavelength outside a band pass region from reaching the photodetector and to pass light having a wavelength within the band pass region to the photodetector. The percentage of light passing through the LAS optical filter may decrease as the angle of incidence of the light increases.
    Type: Application
    Filed: March 1, 2021
    Publication date: June 17, 2021
    Applicant: Senseonics, Incorporated
    Inventors: Joshua C. Schaefer, Andrew DeHennis, Szymon Tankiewicz
  • Patent number: 10932703
    Abstract: Apparatuses and methods for improving the accuracy of an analyte sensor are disclosed. The sensor may include a photodetector and a low angle sensitive (LAS) optical filter. The photodetector may be configured to convert received light into current indicative of the intensity of the received light. The LAS optical filter may be configured to prevent light having a wavelength outside a band pass region from reaching the photodetector and to pass light having a wavelength within the band pass region to the photodetector. The percentage of light passing through the LAS optical filter may decrease as the angle of incidence of the light increases.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: March 2, 2021
    Assignee: Senseonics, Incorporated
    Inventors: Joshua C. Schaefer, Andrew DeHennis, Szymon Tankiewicz
  • Publication number: 20200107757
    Abstract: Apparatuses and methods for improving the accuracy of an analyte sensor are disclosed. The sensor may include a photodetector and a low angle sensitive (LAS) optical filter. The photodetector may be configured to convert received light into current indicative of the intensity of the received light. The LAS optical filter may be configured to prevent light having a wavelength outside a band pass region from reaching the photodetector and to pass light having a wavelength within the band pass region to the photodetector. The percentage of light passing through the LAS optical filter may decrease as the angle of incidence of the light increases.
    Type: Application
    Filed: November 27, 2019
    Publication date: April 9, 2020
    Applicant: Senseonics, Incorporated
    Inventors: Joshua C. Schaefer, Andrew DeHennis, Szymon Tankiewicz
  • Patent number: 10537269
    Abstract: Apparatuses and methods for improving the accuracy of an analyte sensor are disclosed. The sensor may include a photodetector and a low angle sensitive (LAS) optical filter. The photodetector may be configured to convert received light into current indicative of the intensity of the received light. The LAS optical filter may be configured to prevent light having a wavelength outside a band pass region from reaching the photodetector and to pass light having a wavelength within the band pass region to the photodetector. The percentage of light passing through the LAS optical filter may decrease as the angle of incidence of the light increases.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: January 21, 2020
    Assignee: Senseonics, Incorporated
    Inventors: Joshua C. Schaefer, Andrew DeHennis, Szymon Tankiewicz
  • Publication number: 20190008385
    Abstract: An inductive sensor system for remote powering and communication with an analyte sensor (e.g., a fully implantable analyte sensor). The system may include an analyte sensor and transceiver. The system may be ferrite-enhanced. The transceiver may implement a passive telemetry for communicating with the analyte sensor via an inductive magnetic link for both power and data transfer. The link may be a co-planar, near field communication telemetry link. The transceiver may include a reflection plate configured to focus flux lines linking the transceiver and the sensor uniformly beneath the transceiver. The transceiver may include an amplifier configured to amplify battery power and provide radio frequency (RF) power to a transceiver antenna.
    Type: Application
    Filed: January 15, 2018
    Publication date: January 10, 2019
    Applicant: Senseonics, Incorporated
    Inventors: Szymon Tankiewicz, Joshua C. Schaefer, Andrew DeHennis, Todd Whitehurst
  • Patent number: 9867540
    Abstract: An inductive sensor system for remote powering and communication with an analyte sensor (e.g., a fully implantable analyte sensor). The system may include an analyte sensor and transceiver. The system may be ferrite-enhanced. The transceiver may implement a passive telemetry for communicating with the analyte sensor via an inductive magnetic link for both power and data transfer. The link may be a co-planar, near field communication telemetry link. The transceiver may include a reflection plate configured to focus flux lines linking the transceiver and the sensor uniformly beneath the transceiver. The transceiver may include an amplifier configured to amplify battery power and provide radio frequency (RF) power to a transceiver antenna.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: January 16, 2018
    Assignee: Senseonics, Incorporated
    Inventors: Szymon Tankiewicz, Joshua C. Schaefer, Andrew DeHennis, Todd Whitehurst
  • Publication number: 20160015302
    Abstract: Apparatuses and methods for improving the accuracy of an analyte sensor are disclosed. The sensor may include a photodetector and a low angle sensitive (LAS) optical filter. The photodetector may be configured to convert received light into current indicative of the intensity of the received light. The LAS optical filter may be configured to prevent light having a wavelength outside a band pass region from reaching the photodetector and to pass light having a wavelength within the band pass region to the photodetector. The percentage of light passing through the LAS optical filter may decrease as the angle of incidence of the light increases.
    Type: Application
    Filed: July 15, 2015
    Publication date: January 21, 2016
    Applicant: SENSEONICS, INCORPORATED
    Inventors: Joshua C. Schaefer, Andrew DeHennis, Szymon Tankiewicz
  • Publication number: 20150045635
    Abstract: An inductive sensor system for remote powering and communication with an analyte sensor (e.g., a fully implantable analyte sensor). The system may include an analyte sensor and transceiver. The system may be ferrite-enhanced. The transceiver may implement a passive telemetry for communicating with the analyte sensor via an inductive magnetic link for both power and data transfer. The link may be a co-planar, near field communication telemetry link. The transceiver may include a reflection plate configured to focus flux lines linking the transceiver and the sensor uniformly beneath the transceiver. The transceiver may include an amplifier configured to amplify battery power and provide radio frequency (RF) power to a transceiver antenna.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 12, 2015
    Applicant: SENSEONICS, INCORPORATED
    Inventors: Szymon Tankiewicz, Joshua C. Schaefer, Andrew DeHennis, Todd Whitehurst