Patents by Inventor Stephen F. Dreyer
Stephen F. Dreyer 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: 20230193343Abstract: Apparatus and methods for determining the blood glucose concentration of a patient are disclosed A saliva glucose measurement strip is used in conjunction with a glucose measurement device to measure an electrochemical signal of a saliva sample and the measured electrochemical signal is correlated to a blood glucose convention.Type: ApplicationFiled: December 20, 2022Publication date: June 22, 2023Inventors: PRIYANKA AGRAWAL, VLADIMIR BASHKIROV, STEPHEN F. DREYER, YUN HE, IGOR IVANOV, CHING JINN LIN, LANXIN SHEN, HUI TIAN
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Patent number: 11484881Abstract: Diagnostic systems for sensing biological molecules are disclosed. The diagnostic systems include a fluid control delivery and control system that can be coupled to a diagnostic cartridge that includes a microfluidic device and integrated sensing electronics. The diagnostic systems can be used to sequence biological molecules.Type: GrantFiled: June 25, 2020Date of Patent: November 1, 2022Assignee: AXBIO INC.Inventors: Albert Chueh, Stephen F. Dreyer, Priyanka Agrawal, Igor Ivanov, Hui Tian
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Patent number: 10955404Abstract: Integrated circuits for sensing biological molecules are disclosed. The integrated circuits can be used to measure the impedance of a biological sample under test. The integrated circuits can be used to sequence polynucleotides using a cell array.Type: GrantFiled: May 23, 2019Date of Patent: March 23, 2021Assignee: AXBIO INC.Inventors: Stephen F. Dreyer, Priyanka Agrawal, Hui Tian
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Publication number: 20200406259Abstract: Diagnostic systems for sensing biological molecules are disclosed. The diagnostic systems include a fluid control delivery and control system that can be coupled to a diagnostic cartridge that includes a microfluidic device and integrated sensing electronics. The diagnostic systems can be used to sequence biological molecules.Type: ApplicationFiled: June 25, 2020Publication date: December 31, 2020Inventors: ALBERT CHUEH, STEPHEN F. DREYER, PRIYANKA AGRAWAL, IGOR IVANOV, HUI TIAN
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Patent number: 10616966Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: GrantFiled: February 27, 2019Date of Patent: April 7, 2020Assignee: Chemtron Research LLCInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Publication number: 20190360996Abstract: Integrated circuits for sensing biological molecules are disclosed. The integrated circuits can be used to measure the impedance of a biological sample under test. The integrated circuits can be used to sequence polynucleotides using a cell array.Type: ApplicationFiled: May 23, 2019Publication date: November 28, 2019Inventors: STEPHEN F. DREYER, PRIYANKA AGRAWAL, HUI TIAN
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Publication number: 20190200423Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: ApplicationFiled: February 27, 2019Publication date: June 27, 2019Inventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Patent number: 10231301Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: GrantFiled: November 13, 2017Date of Patent: March 12, 2019Assignee: Chemtron Research LLCInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Publication number: 20180110099Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: ApplicationFiled: November 13, 2017Publication date: April 19, 2018Inventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Patent number: 9820349Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: GrantFiled: August 3, 2016Date of Patent: November 14, 2017Assignee: Chemtron Research LLCInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Publication number: 20170034879Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: ApplicationFiled: August 3, 2016Publication date: February 2, 2017Inventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Patent number: 9426856Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: GrantFiled: May 20, 2015Date of Patent: August 23, 2016Assignee: Chemtron Research LLCInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Publication number: 20150257226Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: ApplicationFiled: May 20, 2015Publication date: September 10, 2015Inventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Patent number: 9060401Abstract: Apparatus and method are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs couplable to form a plurality of segments of LEDs; a current sensor; and a controller to monitor a current level through an overall series LED current path, and to provide for first or second segments of LEDs to be in or out of the overall series LED current path at different current levels. The controller is configured to, in a first light emitting diode configuration, cause first and second segments of LEDs to be parallel to one another and in the overall series LED current path. The controller is further configured to, in a second light emitting diode configuration, cause first and second segments of light emitting diodes to be coupled in series and in the overall series light emitting diode current path.Type: GrantFiled: January 24, 2014Date of Patent: June 16, 2015Assignee: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Patent number: 9055641Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: GrantFiled: October 28, 2013Date of Patent: June 9, 2015Assignee: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Publication number: 20140139112Abstract: Apparatus and method are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs couplable to form a plurality of segments of LEDs; a current sensor; and a controller to monitor a current level through an overall series LED current path, and to provide for first or second segments of LEDs to be in or out of the overall series LED current path at different current levels. The controller is configured to, in a first light emitting diode configuration, cause first and second segments of LEDs to be parallel to one another and in the overall series LED current path. The controller is further configured to, in a second light emitting diode configuration, cause first and second segments of light emitting diodes to be coupled in series and in the overall series light emitting diode current path.Type: ApplicationFiled: January 24, 2014Publication date: May 22, 2014Applicant: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Publication number: 20140125230Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: ApplicationFiled: October 28, 2013Publication date: May 8, 2014Applicant: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Patent number: 8569956Abstract: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.Type: GrantFiled: October 27, 2011Date of Patent: October 29, 2013Assignee: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Dongsheng Zhou, Stephen F. Dreyer, Harlan Ohara, Sinan Doluca
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Patent number: 8410717Abstract: An apparatus, method, and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a first plurality of segments of LEDs; a plurality of switches coupled to the plurality of segments of LEDs to switch a selected segment into or out of a series LED current path in response to a control signal; a current sensor; and a controller which, in response to a first parameter and during a first part of an AC voltage interval, generates a first control signal to switch a corresponding segment of LEDs into the series LED current path; and during a second part of the AC voltage interval, generates a second control signal to switch the corresponding segment of LEDs out of the first series LED current path.Type: GrantFiled: March 22, 2010Date of Patent: April 2, 2013Assignee: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Dongsheng Zhou, Harry Rodriguez, Mark Eason, Bradley M. Lehman, Stephen F. Dreyer, Thomas J. Riordan
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Patent number: 8324840Abstract: An apparatus, method, and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a first plurality of segments of LEDs coupled in series; a plurality of switches coupled to the plurality of segments of LEDs to switch a selected segment into or out of a series LED current path in response to a control signal; a memory; and a controller which, in response to a first parameter and during a first part of an AC voltage interval, determines and stores in the memory a value of a second parameter and generates a first control signal to switch a corresponding segment of LEDs into the series LED current path, and during a second part of the AC voltage interval, when a current value of the second parameter is substantially equal to the stored value, generates a second control signal to switch a corresponding segment of LEDs out of the first series LED current path.Type: GrantFiled: June 4, 2009Date of Patent: December 4, 2012Assignee: Point Somee Limited Liability CompanyInventors: Anatoly Shteynberg, Dongsheng Zhou, Harry Rodriguez, Mark Eason, Bradley M. Lehman, Stephen F. Dreyer, Thomas J. Riordan