Patents by Inventor TOAN HUYNH
TOAN HUYNH 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: 20230149932Abstract: An embodiment of a system includes a compartment-generating device, a compartment detector, and electronic computing circuitry. The device is configured to generate compartments of a digital assay, at least one of the compartments having a respective volume that is different from a respective volume of each of at least another one of the compartments. The detector is configured to determine a number of the compartments each having a respective number of a target that is greater than a threshold number of the target. And the electronic circuitry is configured to determine a bulk concentration of the target in a source of the sample in response to the determined number of compartments. Because such a system can be configured to estimate a bulk concentration of a target in a source from a polydisperse digital assay, the system can be portable, and lower-cost and faster, than conventional systems.Type: ApplicationFiled: January 6, 2023Publication date: May 18, 2023Applicant: Tokitae LLCInventors: Toan Huynh, Bernhard Hans Weigl, Samantha A. Byrnes, Kevin Paul Flood Nichols
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Patent number: 11577247Abstract: An embodiment of a system includes a compartment-generating device, a compartment detector, and electronic computing circuitry. The device is configured to generate compartments of a digital assay, at least one of the compartments having a respective volume that is different from a respective volume of each of at least another one of the compartments. The detector is configured to determine a number of the compartments each having a respective number of a target that is greater than a threshold number of the target. And the electronic circuitry is configured to determine a bulk concentration of the target in a source of the sample in response to the determined number of compartments. Because such a system can be configured to estimate a bulk concentration of a target in a source from a polydisperse digital assay, the system can be portable, and lower-cost and faster, than conventional systems.Type: GrantFiled: March 8, 2022Date of Patent: February 14, 2023Assignee: Tokitae LLCInventors: Toan Huynh, Bernhard Hans Weigl, Samantha A. Byrnes, Kevin Paul Flood Nichols
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Publication number: 20220228976Abstract: Methods and devices are provided to provide clean signals even in the presence of spectral interference. At least some of these methods can be applied for cases when interfering signals are to be accounted for. These cases include, but are not limited to, hemolysis detection, icterus detection, and assays. They can be implemented in with data collected with spectrophotometers, instruments that can collect absorbance values at the few wavelengths of interest, and, in the case of the method based on background subtraction, simple imaging setups with only two filters (such as but not limited to narrow-band and wide-band) per absorption peak of interest.Type: ApplicationFiled: November 23, 2021Publication date: July 21, 2022Inventor: Toan Huynh
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Publication number: 20220193661Abstract: An embodiment of a system includes a compartment-generating device, a compartment detector, and electronic computing circuitry. The device is configured to generate compartments of a digital assay, at least one of the compartments having a respective volume that is different from a respective volume of each of at least another one of the compartments. The detector is configured to determine a number of the compartments each having a respective number of a target that is greater than a threshold number of the target. And the electronic circuitry is configured to determine a bulk concentration of the target in a source of the sample in response to the determined number of compartments. Because such a system can be configured to estimate a bulk concentration of a target in a source from a polydisperse digital assay, the system can be portable, and lower-cost and faster, than conventional systems.Type: ApplicationFiled: March 8, 2022Publication date: June 23, 2022Applicant: Tokitae LLCInventors: Toan Huynh, Bernhard Hans Weigl, Samantha A. Byrnes, Kevin Paul Flood Nichols
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Patent number: 11318467Abstract: Embodiments include assay devices within a single use, disposable cassette for biochemical assays with at least one fluid well and at least one capillary valve. The capillary valve in combination with motion of porous sheets within the assay leads to addition of liquid reagents at different times to the assay although a user adds the liquid reagents to the cassette simultaneously.Type: GrantFiled: May 29, 2020Date of Patent: May 3, 2022Assignee: Tokitae LLCInventors: Caitlin E. Anderson, Joshua Davis Bishop, David Michael Cate, Benjamin David Grant, Toan Huynh, Damian Madan, Kevin Paul Flood Nichols, Bernhard Hans Weigl
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Patent number: 11305284Abstract: An embodiment of a system includes a compartment-generating device, a compartment detector, and electronic computing circuitry. The device is configured to generate compartments of a digital assay, at least one of the compartments having a respective volume that is different from a respective volume of each of at least another one of the compartments. The detector is configured to determine a number of the compartments each having a respective number of a target that is greater than a threshold number of the target. And the electronic circuitry is configured to determine a bulk concentration of the target in a source of the sample in response to the determined number of compartments. Because such a system can be configured to estimate a bulk concentration of a target in a source from a polydisperse digital assay, the system can be portable, and lower-cost and faster, than conventional systems.Type: GrantFiled: November 26, 2018Date of Patent: April 19, 2022Assignee: Tokitae, LLCInventors: Toan Huynh, Bernhard Hans Weigl, Samantha A. Byrnes, Kevin Paul Flood Nichols
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Publication number: 20210370290Abstract: Embodiments include assay devices within a single use, disposable cassette for biochemical assays with at least one fluid well and at least one capillary valve. The capillary valve in combination with motion of porous sheets within the assay leads to addition of liquid reagents at different times to the assay although a user adds the liquid reagents to the cassette simultaneously.Type: ApplicationFiled: May 29, 2020Publication date: December 2, 2021Inventors: Caitlin E. Anderson, Joshua Davis Bishop, David Michael Cate, Benjamin David Grant, Toan Huynh, Damian Madan, Kevin Paul Flood Nichols, Bernhard Hans Weigl
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Patent number: 11187651Abstract: Methods and devices are provided to provide clean signals even in the presence of spectral interference. At least some of these methods can be applied for cases when interfering signals are to be accounted for. These cases include, but are not limited to, hemolysis detection, icterus detection, and assays. They can be implemented in with data collected with spectrophotometers, instruments that can collect absorbance values at the few wavelengths of interest, and, in the case of the method based on background subtraction, simple imaging setups with only two filters (such as but not limited to narrow-band and wide-band) per absorption peak of interest.Type: GrantFiled: July 31, 2019Date of Patent: November 30, 2021Assignee: Labrador Diagnostics LLCInventor: Toan Huynh
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Patent number: 10924464Abstract: Credentials and other sensitive strings can undergo automatic rotation before each transmission or storage of those credentials. String modification, which can utilize a key stretching algorithm, can be used to modify the credential before transmission. This can be for an initial sign up, a subsequent login, or another such action. A random number can be generated to determine the number of iterations for the key stretching algorithm to be applied. For subsequent actions, a new random number can be added to the prior iteration number in order to create a new string that can be generated using the previously utilized iteration number and the new random number, with only the new random number being transmitted with the modified credential string. This increases security, as the transmission itself cannot be used to recover the original plaintext credential if recovered.Type: GrantFiled: August 26, 2019Date of Patent: February 16, 2021Assignee: AMAZON TECHNOLOGIES, INC.Inventor: Toan Huynh
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Publication number: 20200164364Abstract: An embodiment of a system includes a compartment-generating device, a compartment detector, and electronic computing circuitry. The device is configured to generate compartments of a digital assay, at least one of the compartments having a respective volume that is different from a respective volume of each of at least another one of the compartments. The detector is configured to determine a number of the compartments each having a respective number of a target that is greater than a threshold number of the target. And the electronic circuitry is configured to determine a bulk concentration of the target in a source of the sample in response to the determined number of compartments. Because such a system can be configured to estimate a bulk concentration of a target in a source from a polydisperse digital assay, the system can be portable, and lower-cost and faster, than conventional systems.Type: ApplicationFiled: November 26, 2018Publication date: May 28, 2020Applicant: Tokitae LLCInventors: Toan Huynh, Bernhard Hans Weigl, Samantha A. Byrnes, Kevin Paul Flood Nichols
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Patent number: 10585091Abstract: Provided herein are methods, compositions, and devices for the identification and quantification of analytes, such as nucleic acids, proteins, cells or other biological samples. The methods, compositions, and devices are suited for accurate, portable analysis of small amounts of analyte.Type: GrantFiled: January 19, 2016Date of Patent: March 10, 2020Assignees: The University of Chicago, California Institute of TechnologyInventors: Rustem F. Ismagilov, Stephanie McCalla, Travis Schlappi, Toan Huynh, Justin Rolando, Weishan Liu, Shencheng Ge, Jason E. Kreutz
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Publication number: 20200049622Abstract: Methods and devices are provided to provide clean signals even in the presence of spectral interference. At least some of these methods can be applied for cases when interfering signals are to be accounted for. These cases include, but are not limited to, hemolysis detection, icterus detection, and assays. They can be implemented in with data collected with spectrophotometers, instruments that can collect absorbance values at the few wavelengths of interest, and, in the case of the method based on background subtraction, simple imaging setups with only two filters (such as but not limited to narrow-band and wide-band) per absorption peak of interest.Type: ApplicationFiled: July 31, 2019Publication date: February 13, 2020Inventor: Toan Huynh
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Publication number: 20200036693Abstract: Credentials and other sensitive strings can undergo automatic rotation before each transmission or storage of those credentials. String modification, which can utilize a key stretching algorithm, can be used to modify the credential before transmission. This can be for an initial sign up, a subsequent login, or another such action. A random number can be generated to determine the number of iterations for the key stretching algorithm to be applied. For subsequent actions, a new random number can be added to the prior iteration number in order to create a new string that can be generated using the previously utilized iteration number and the new random number, with only the new random number being transmitted with the modified credential string. This increases security, as the transmission itself cannot be used to recover the original plaintext credential if recovered.Type: ApplicationFiled: August 26, 2019Publication date: January 30, 2020Inventor: Toan Huynh
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Publication number: 20190336969Abstract: Provided herein are methods, compositions, and devices for the parallel handling of samples, such as cells or other biological samples. The methods, compositions, and devices are suited for multiple levels of analysis, including genetic and functional assays, of samples.Type: ApplicationFiled: March 27, 2019Publication date: November 7, 2019Inventors: Rustem F. ISMAGILOV, Liang MA, Qichao PAN, Mikhail KARYMOV, Toan HUYNH, George SAWICKI, Stefano BEGOLO, Wenbin DU
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Patent number: 10397207Abstract: Credentials and other sensitive strings can undergo automatic rotation before each transmission or storage of those credentials. String modification, which can utilize a key stretching algorithm, can be used to modify the credential before transmission. This can be for an initial sign up, a subsequent login, or another such action. A random number can be generated to determine the number of iterations for the key stretching algorithm to be applied. For subsequent actions, a new random number can be added to the prior iteration number in order to create a new string that can be generated using the previously utilized iteration number and the new random number, with only the new random number being transmitted with the modified credential string. This increases security, as the transmission itself cannot be used to recover the original plaintext credential if recovered.Type: GrantFiled: July 17, 2017Date of Patent: August 27, 2019Assignee: AMAZON TECHNOLOGIES, INC.Inventor: Toan Huynh
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Patent number: 9539500Abstract: A method for biometric identification for use with a computing device is provided herein. The method includes capturing a temporal sequence of images of the face of a user at different locations within a three-dimensional interaction space. The method further includes extracting one or more face descriptors from the images and generating a biometric template compiling the face descriptors.Type: GrantFiled: August 5, 2014Date of Patent: January 10, 2017Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Tommer Leyvand, Jinyu Li, Casey Meekhof, Tim Keosababian, Simon Stachniak, Ryan Gunn, Alan Stuart, Russ Glaser, Eddie Mays, Toan Huynh, Richard Irving, James Waletzky, Ajay Ramjee
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Publication number: 20160266105Abstract: Provided herein are methods, compositions, and devices for the identification and quantification of analytes, such as nucleic acids, proteins, cells or other biological samples. The methods, compositions, and devices are suited for accurate, portable analysis of small amounts of analyte.Type: ApplicationFiled: January 19, 2016Publication date: September 15, 2016Inventors: Rustem F. ISMAGILOV, Stephanie MCCALLA, Travis SCHLAPPI, Toan HUYNH, Justin ROLANDO, Weishan LIU, Shencheng GE, Jason E. KREUTZ
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Publication number: 20160114322Abstract: Provided herein are methods, compositions, and devices for the parallel handling of samples, such as cells or other biological samples. The methods, compositions, and devices are suited for multiple levels of analysis, including genetic and functional assays, of samples.Type: ApplicationFiled: April 18, 2014Publication date: April 28, 2016Inventors: Rustem F. ISMAGILOV, Liang MA, Qichao PAN, Mikhail KARYMOV, Toan HUYNH, George SAWICKI, Stefano BEGOLO, Wenbin DU
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Patent number: 9037870Abstract: A file system data is divided into two or more data blocks. A unique encryption key is assigned to each data block with the encryption key assigned to each data block being distinct from other encryption keys used to encrypt the other data blocks and each of the data blocks is encrypted using its assigned encryption key. One of the data blocks within the file system is then selected and decrypted using the distinct encryption key assigned to the selected data block and a new encryption key, distinct for the previously assigned encryption key, is assigned to the selected data block and the selected data block is re-encrypted using the new encryption key. This process is then repeated for each data block on a sequential/cyclic and continually rotating basis.Type: GrantFiled: August 16, 2013Date of Patent: May 19, 2015Assignee: Intuit Inc.Inventors: Peter Xiaohu Zheng, Toan Huynh
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Publication number: 20140349747Abstract: A method for biometric identification for use with a computing device is provided herein. The method includes capturing a temporal sequence of images of the face of a user at different locations within a three-dimensional interaction space. The method further includes extracting one or more face descriptors from the images and generating a biometric template compiling the face descriptors.Type: ApplicationFiled: August 5, 2014Publication date: November 27, 2014Inventors: Tommer Leyvand, Jinyu Li, Casey Meekhof, Tim Keosababian, Simon Stachniak, Ryan Gunn, Alan Stuart, Russ Glaser, Eddie Mays, Toan Huynh, Richard Irving, James Waletzky, Ajay Ramjee