Patents by Inventor Yun-Pei CHANG
Yun-Pei CHANG 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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Publication number: 20250130170Abstract: Analyte collection and testing systems and methods, and more particularly to testing systems and methods that achieve significant improvements in the detection of fluorescence signals in the reader by modulating the applied optical excitation. Also described herein are optical detection apparatuses and methods for removable photonic chips that do not require translation for calibration when coupling the photonics chip with the sensing system. Also described herein are methods and apparatuses for accurately calibrating a dilution factor when reading from a photonics chip.Type: ApplicationFiled: July 24, 2024Publication date: April 24, 2025Inventors: Hardeep SANGHERA, Ashutosh SHASTRY, David PIEHLER, Yun-Pei CHANG
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Publication number: 20250020676Abstract: Analyte collection and testing systems and methods, and more particularly to disposable oral fluid collection and testing systems and methods. Described herein are methods and apparatuses to achieve significant improvements in the detection of fluorescence signals in the reader.Type: ApplicationFiled: March 25, 2024Publication date: January 16, 2025Inventors: Ashutosh SHASTRY, David PIEHLER, Hardeep SANGHERA, Michael GLUZCZACK, Pranav CHOPRA, Yun-Pei CHANG, Ameya KANTAK
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Patent number: 12066383Abstract: Analyte collection and testing systems and methods, and more particularly to testing systems and methods that achieve significant improvements in the detection of fluorescence signals in the reader by modulating the applied optical excitation. Also described herein are optical detection apparatuses and methods for removable photonic chips that do not require translation for calibration when coupling the photonics chip with the sensing system. Also described herein are methods and apparatuses for accurately calibrating a dilution factor when reading from a photonics chip.Type: GrantFiled: December 18, 2019Date of Patent: August 20, 2024Assignee: Aspida DX Inc.Inventors: Hardeep Sanghera, Ashutosh Shastry, David Piehler, Yun-Pei Chang
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Patent number: 11940454Abstract: Analyte collection and testing systems and methods, and more particularly to disposable oral fluid collection and testing systems and methods. Described herein are methods and apparatuses to achieve significant improvements in the detection of fluorescence signals in the reader.Type: GrantFiled: February 28, 2022Date of Patent: March 26, 2024Assignee: ASPIDA DX INC.Inventors: Ashutosh Shastry, David Piehler, Hardeep Sanghera, Michael Gluzczack, Pranav Chopra, Yun-Pei Chang, Ameya Kantak
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Publication number: 20220283191Abstract: Analyte collection and testing systems and methods, and more particularly to disposable oral fluid collection and testing systems and methods. Described herein are methods and apparatuses to achieve significant improvements in the detection of fluorescence signals in the reader.Type: ApplicationFiled: February 28, 2022Publication date: September 8, 2022Inventors: Ashutosh SHASTRY, David PIEHLER, Hardeep SANGHERA, Michael GLUZCZACK, Pranav CHOPRA, Yun-Pei CHANG, Ameya KANTAK
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Patent number: 11262367Abstract: Analyte collection and testing systems and methods, and more particularly to disposable oral fluid collection and testing systems and methods. Described herein are methods and apparatuses to achieve significant improvements in the detection of fluorescence signals in the reader.Type: GrantFiled: December 17, 2018Date of Patent: March 1, 2022Assignee: Evanostics LLCInventors: Ashutosh Shastry, David Piehler, Hardeep Sanghera, Michael Gluzczack, Pranav Chopra, Yun-Pei Chang, Ameya Kantak
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Publication number: 20220050054Abstract: Analyte collection and testing systems and methods, and more particularly to testing systems and methods that achieve significant improvements in the detection of fluorescence signals in the reader by modulating the applied optical excitation. Also described herein are optical detection apparatuses and methods for removable photonic chips that do not require translation for calibration when coupling the photonics chip with the sensing system. Also described herein are methods and apparatuses for accurately calibrating a dilution factor when reading from a photonics chip.Type: ApplicationFiled: December 18, 2019Publication date: February 17, 2022Inventors: Hardeep SANGHERA, Ashutosh SHASTRY, David PIEHLER, Yun-Pei CHANG
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Patent number: 10590493Abstract: The invention provides methods and devices for generating optical pulses in one or more waveguides using a spatially scanning light source. A detection system, methods of use thereof and kits for detecting a biologically active analyte molecule are also provided. The system includes a scanning light source, a substrate comprising a plurality of waveguides and a plurality of optical sensing sites in optical communication with one or more waveguide of the substrate, a detector that is coupled to and in optical communication with the substrate, and means for spatially translating a light beam emitted from said scanning light source such that the light beam is coupled to and in optical communication with the waveguides of the substrate at some point along its scanning path. The use of a scanning light source allows the coupling of light into the waveguides of the substrate in a simple and cost-effective manner.Type: GrantFiled: May 17, 2018Date of Patent: March 17, 2020Assignee: LDIP, LLCInventors: Reuven Duer, Yun-Pei Chang, Ashutosh Shastry
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Publication number: 20190187162Abstract: Analyte collection and testing systems and methods, and more particularly to disposable oral fluid collection and testing systems and methods. Described herein are methods and apparatuses to achieve significant improvements in the detection of fluorescence signals in the reader.Type: ApplicationFiled: December 17, 2018Publication date: June 20, 2019Inventors: Ashutosh SHASTRY, David PIEHLER, Hardeep SANGHERA, Michael GLUZCZACK, Pranav CHOPRA, Yun-Pei CHANG, Ameya KANTAK
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Publication number: 20180265937Abstract: The invention provides methods and devices for generating optical pulses in one or more waveguides using a spatially scanning light source. A detection system, methods of use thereof and kits for detecting a biologically active analyte molecule are also provided. The system includes a scanning light source, a substrate comprising a plurality of waveguides and a plurality of optical sensing sites in optical communication with one or more waveguide of the substrate, a detector that is coupled to and in optical communication with the substrate, and means for spatially translating a light beam emitted from said scanning light source such that the light beam is coupled to and in optical communication with the waveguides of the substrate at some point along its scanning path. The use of a scanning light source allows the coupling of light into the waveguides of the substrate in a simple and cost-effective manner.Type: ApplicationFiled: May 17, 2018Publication date: September 20, 2018Inventors: Reuven DUER, Yun-Pei CHANG, Ashutosh SHASTRY
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Patent number: 10018566Abstract: Optical readers and alignment tools for detecting the level of an analyte. Described herein are small, disposable partially-encapsulated sensing chips for detecting an analyte level from a fluid sample (e.g., a blood sample) having an edge of the integrated sensing chip exposed to directly expose a plurality of excitation and a collection waveguides, as well as optical readers and methods of operating them. A fluid sample maybe applied to a sensing surface of the sensing chip in the housing so that an analyte level can be optically detected. Also described are methods of sensing an analyte using these devices and systems including an optical detector.Type: GrantFiled: July 29, 2015Date of Patent: July 10, 2018Assignee: LDIP, LLCInventors: Ming Tan, Yun-Pei Chang, Leyla Sabet, Ashutosh Shastry, Christopher E. Todd, Reuven Duer
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Patent number: 9976192Abstract: The invention provides methods and devices for generating optical pulses in one or more waveguides using a spatially scanning light source. A detection system, methods of use thereof and kits for detecting a biologically active analyte molecule are also provided. The system includes a scanning light source, a substrate comprising a plurality of waveguides and a plurality of optical sensing sites in optical communication with one or more waveguide of the substrate, a detector that is coupled to and in optical communication with the substrate, and means for spatially translating a light beam emitted from said scanning light source such that the light beam is coupled to and in optical communication with the waveguides of the substrate at some point along its scanning path. The use of a scanning light source allows the coupling of light into the waveguides of the substrate in a simple and cost-effective manner.Type: GrantFiled: October 3, 2016Date of Patent: May 22, 2018Assignee: LDIP, LLCInventors: Reuven Duer, Yun-Pei Chang, Ashutosh Shastry
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Publication number: 20170023477Abstract: The invention provides methods and devices for generating optical pulses in one or more waveguides using a spatially scanning light source. A detection system, methods of use thereof and kits for detecting a biologically active analyte molecule are also provided. The system includes a scanning light source, a substrate comprising a plurality of waveguides and a plurality of optical sensing sites in optical communication with one or more waveguide of the substrate, a detector that is coupled to and in optical communication with the substrate, and means for spatially translating a light beam emitted from said scanning light source such that the light beam is coupled to and in optical communication with the waveguides of the substrate at some point along its scanning path. The use of a scanning light source allows the coupling of light into the waveguides of the substrate in a simple and cost-effective manner.Type: ApplicationFiled: October 3, 2016Publication date: January 26, 2017Inventors: Reuven DUER, Yun-Pei CHANG, Ashutosh SHASTRY
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Publication number: 20160033412Abstract: Optical readers and alignment tools for detecting the level of an analyte. Described herein are small, disposable partially-encapsulated sensing chips for detecting an analyte level from a fluid sample (e.g., a blood sample) having an edge of the integrated sensing chip exposed to directly expose a plurality of excitation and a collection waveguides, as well as optical readers and methods of operating them. A fluid sample maybe applied to a sensing surface of the sensing chip in the housing so that an analyte level can be optically detected. Also described are methods of sensing an analyte using these devices and systems including an optical detector.Type: ApplicationFiled: July 29, 2015Publication date: February 4, 2016Inventors: Ming TAN, Yun-Pei CHANG, Leyla SABET, Ashutosh SHASTRY, Christopher E. TODD, Reuven DUER