Patents by Inventor John Stang
John Stang 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: 11749814Abstract: An electrochemical cell includes a pair of bipolar plates and a membrane electrode assembly between the bipolar plates. The membrane electrode assembly comprises an anode compartment, a cathode compartment, and a proton exchange membrane disposed therebetween. The cell further includes a sealing surface formed in one of the pair of bipolar plates and a gasket located between the sealing surface and the proton exchange membrane. The gasket is configured to plastically deform to create a seal about one of the cathode compartment or the anode compartment. The sealing surface can include one or more protrusions.Type: GrantFiled: November 2, 2020Date of Patent: September 5, 2023Assignee: Nuvera Fuel Cells, LLCInventors: Roger Van Boeyen, Edward Domit, Kevin Beverage, Scott Blanchet, John Stang
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Patent number: 11540724Abstract: A method for determining a change of temperature of an object. The method may include heating an object and measuring scattering parameters (S-parameters) of scattered microwave electric fields from the object. A distorted Born iterative method may be used to determine a change of a dielectric property of the object based on the measured S-parameters. A change of temperature of the object may be determined based on the change of the dielectric property of the object.Type: GrantFiled: January 4, 2018Date of Patent: January 3, 2023Assignee: UNIVERSITY OF SOUTHERN CALIFORNIAInventors: Guanbo Chen, Mahta Moghaddam, John Stang, Mark Haynes
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Publication number: 20220327544Abstract: Certain aspects of the present disclosure provide techniques for detecting fraudulent transactions in a transaction processing system. An example method generally includes receiving a request to process a transaction. An input data set including a vector representing the transaction and a plurality of vectors representing historical transactions is generated. The input data set is divided into a plurality of ragged tensors corresponding to non-overlapping time segments of variable length and having a plurality of vectors associated with dates within each time segment A reduced input data set is generated by generating, for each respective ragged tensor of the plurality of ragged tensors, a respective representative vector using max pooling over vectors in the ragged tensor. A fraudulent transaction score is generated based on the reduced input data set using a fraud detection model. The transaction is processed based, at least in part, on the fraudulent transaction score.Type: ApplicationFiled: June 28, 2022Publication date: October 13, 2022Inventors: Henry VENTURELLI, Runhua ZHAO, Damayanti SENGUPTA, Nicholas John STANG, Zeyu LI
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Patent number: 11379842Abstract: Certain aspects of the present disclosure provide techniques for detecting fraudulent transactions in a transaction processing system. An example method generally includes receiving a request to process a transaction. An input data set including a vector representing the transaction and a plurality of vectors representing historical transactions is generated. The input data set is divided into a plurality of ragged tensors corresponding to non-overlapping time segments of variable length and having a plurality of vectors associated with dates within each time segment A reduced input data set is generated by generating, for each respective ragged tensor of the plurality of ragged tensors, a respective representative vector using max pooling over vectors in the ragged tensor. A fraudulent transaction score is generated based on the reduced input data set using a fraud detection model. The transaction is processed based, at least in part, on the fraudulent transaction score.Type: GrantFiled: April 7, 2020Date of Patent: July 5, 2022Assignee: INTUIT INC.Inventors: Henry Venturelli, Runhua Zhao, Damayanti Sengupta, Nicholas John Stang, Zeyu Li
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Publication number: 20220120851Abstract: Systems and methods for software defined radar are disclosed. Exemplary systems utilize a frequency stacking bandwidth reconstruction technique for a stepped frequency signal to create a synthetic wideband waveform. The methods enable low-cost, reconfigurable applications such as ground penetrating radar or small unmanned aerial vehicle synthetic aperture radar platforms.Type: ApplicationFiled: March 26, 2020Publication date: April 21, 2022Inventors: Samuel Prager, Mahta Moghaddam, John Stang
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Patent number: 11250601Abstract: A Convolutional Neural Network (CNN) assisted dielectric imaging method is provided. The method used CNN to incorporate the abundant image information from Magnetic Resonance (MR) images into the inverse scattering model-based microwave imaging process and generate high-fidelity dielectric images. A CNN is designed and trained to learn the complex mapping function from MR T1 images to dielectric images. Once trained, the new patients' MR T1 images are fed into the CNN to generate predicted dielectric images, which are used as the starting image for the microwave inverse scattering imaging. The CNN-predicted dielectric image significantly reduces the non-linearity and ill-posedness of the inverse scattering problem. The application of the proposed method to recover human brain dielectric images at 4 mm and 2 mm resolution with single-frequency and multi-frequency microwave measurements is provided.Type: GrantFiled: April 3, 2020Date of Patent: February 15, 2022Assignee: University of Southern CaliforniaInventors: Guanbo Chen, Mahta Moghaddam, Pratik Shah, John Stang
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Publication number: 20210312455Abstract: Certain aspects of the present disclosure provide techniques for detecting fraudulent transactions in a transaction processing system. An example method generally includes receiving a request to process a transaction. An input data set including a vector representing the transaction and a plurality of vectors representing historical transactions is generated. The input data set is divided into a plurality of ragged tensors corresponding to non-overlapping time segments of variable length and having a plurality of vectors associated with dates within each time segment A reduced input data set is generated by generating, for each respective ragged tensor of the plurality of ragged tensors, a respective representative vector using max pooling over vectors in the ragged tensor. A fraudulent transaction score is generated based on the reduced input data set using a fraud detection model. The transaction is processed based, at least in part, on the fraudulent transaction score.Type: ApplicationFiled: April 7, 2020Publication date: October 7, 2021Inventors: Henry VENTURELLI, Runhua ZHAO, Damayanti SENGUPTA, Nicholas John STANG, Zeyu LI
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Publication number: 20210057764Abstract: An electrochemical cell includes a pair of bipolar plates and a membrane electrode assembly between the bipolar plates. The membrane electrode assembly comprises an anode compartment, a cathode compartment, and a proton exchange membrane disposed therebetween. The cell further includes a sealing surface formed in one of the pair of bipolar plates and a gasket located between the sealing surface and the proton exchange membrane. The gasket is configured to plastically deform to create a seal about one of the cathode compartment or the anode compartment. The sealing surface can include one or more protrusions.Type: ApplicationFiled: November 2, 2020Publication date: February 25, 2021Applicant: NUVERA FUEL CELLS, INC.Inventors: Roger VAN BOEYEN, Edward DOMIT, Kevin BEVERAGE, Scott BLANCHET, John STANG
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Publication number: 20210050606Abstract: An electrochemical cell includes a pair of bipolar plates and a membrane electrode assembly between the bipolar plates. The membrane electrode assembly comprises an anode compartment, a cathode compartment, and a proton exchange membrane disposed therebetween. The cell further includes a sealing surface formed in one of the pair of bipolar plates and a gasket located between the sealing surface and the proton exchange membrane. The gasket is configured to plastically deform to create a seal about one of the cathode compartment or the anode compartment. The sealing surface can include one or more protrusions.Type: ApplicationFiled: November 2, 2020Publication date: February 18, 2021Applicant: NUVERA FUEL CELLS, INC.Inventors: Roger Van Boeyen, Edward Domit, Kevin Beverage, Scott Blanchet, John Stang
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Patent number: 10847815Abstract: An electrochemical cell includes a pair of bipolar plates and a membrane electrode assembly between the bipolar plates. The membrane electrode assembly comprises an anode compartment, a cathode compartment, and a proton exchange membrane disposed therebetween. The cell further includes a sealing surface formed in one of the pair of bipolar plates and a gasket located between the sealing surface and the proton exchange membrane. The gasket is configured to plastically deform to create a seal about one of the cathode compartment or the anode compartment. The sealing surface can include one or more protrusions.Type: GrantFiled: July 29, 2014Date of Patent: November 24, 2020Assignee: Nuvera Fuel Cells, LLPInventors: Roger Van Boeyen, Edward Domit, Kevin Beverage, Scott Blanchet, John Stang
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Publication number: 20200320752Abstract: A Convolutional Neural Network (CNN) assisted dielectric imaging method is provided. The method used CNN to incorporate the abundant image information from Magnetic Resonance (MR) images into the inverse scattering model-based microwave imaging process and generate high-fidelity dielectric images. A CNN is designed and trained to learn the complex mapping function from MR T1 images to dielectric images. Once trained, the new patients' MR T1 images are fed into the CNN to generate predicted dielectric images, which are used as the starting image for the microwave inverse scattering imaging. The CNN-predicted dielectric image significantly reduces the non-linearity and ill-posedness of the inverse scattering problem. The application of the proposed method to recover human brain dielectric images at 4 mm and 2 mm resolution with single-frequency and multi-frequency microwave measurements is provided.Type: ApplicationFiled: April 3, 2020Publication date: October 8, 2020Inventors: GUANBO CHEN, MAHTA MOGHADDAM, PRATIK SHAH, JOHN STANG
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Patent number: 10786569Abstract: A group of Hyperthermia micro/nano particles are prepared. Each nanoparticle has a first diameter between 1 micron to 50 micron and a first thickness between 100 nm to 5 micron, in a disk-like shape. The hyperthermia micro/nano particles in the present show enhanced heat properties under microwave radiation which can be used for diagnosis and therapeutic purpose in cancer treatment.Type: GrantFiled: July 31, 2016Date of Patent: September 29, 2020Inventors: Wei Wu, Yifei Wang, Mahta Moghaddam, John Stang
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Publication number: 20200196905Abstract: Systems and methods for tracking a probe during a procedure. In one embodiment, the method includes monitoring a position of the probe in an imaging region during the procedure using microwave inverse scattering and contrast source inversion. The method also includes solving for a contrast source in the imaging region using compressive sensing and group sparsity. The contrast source exists at a surface of the probe or within the probe. The method further includes imaging the contrast source and the probe by solving a linear inverse scattering problem with a group sparsity constraint. The method also includes determining a location of the probe in the imaging region during the procedure based on the imaging of the contrast source and the probe. The method further includes displaying an image of the location of the probe relative to an anatomy feature in the imaging region during the procedure.Type: ApplicationFiled: August 21, 2018Publication date: June 25, 2020Inventors: Guanbo Chen, Mahta Moghaddam, Pratik Shah, John Stang
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Publication number: 20200093374Abstract: A method for determining a change of temperature of an object. The method may include heating an object and measuring scattering parameters (S-parameters) of scattered microwave electric fields from the object. A distorted Born iterative method may be used to determine a change of a dielectric property of the object based on the measured S-parameters. A change of temperature of the object may be determined based on the change of the dielectric property of the object.Type: ApplicationFiled: January 4, 2018Publication date: March 26, 2020Inventors: Guanbo Chen, Mahta Moghaddam, John Stang, Mark Haynes
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Publication number: 20170209578Abstract: A group of Hyperthermia micro/nano particles are prepared. Each nanoparticle has a first diameter between 1 micron to 50 micron and a first thickness between 100 nm to 5 micron, in a disk-like shape. The hyperthermia micro/nano particles in the present show enhanced heat properties under microwave radiation which can be used for diagnosis and therapeutic purpose in cancer treatment.Type: ApplicationFiled: July 31, 2016Publication date: July 27, 2017Inventors: Wei WU, Yifei WANG, Mahta Moghaddam, John Stang
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Publication number: 20150030957Abstract: An electrochemical cell includes a pair of bipolar plates and a membrane electrode assembly between the bipolar plates. The membrane electrode assembly comprises an anode compartment, a cathode compartment, and a proton exchange membrane disposed therebetween. The cell further includes a sealing surface formed in one of the pair of bipolar plates and a gasket located between the sealing surface and the proton exchange membrane. The gasket is configured to plastically deform to create a seal about one of the cathode compartment or the anode compartment. The sealing surface can include one or more protrusions.Type: ApplicationFiled: July 29, 2014Publication date: January 29, 2015Applicant: NUVERA FUEL CELLS, INC.Inventors: Roger VAN BOEYEN, Edward DOMIT, Kevin BEVERAGE, Scott BLANCHET, John STANG
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Patent number: 5119633Abstract: A turbocompound engine having a power turbine bypass valve and a control module for controlling opening and closing of the bypass valve. The turbocompound engine is capable of operating in a compression braking mode, and the control module opens the bypass valve in response to actuation of the compression braking, resulting in improved braking.Type: GrantFiled: September 25, 1990Date of Patent: June 9, 1992Assignee: Cummins Engine Company, Inc.Inventors: Robert M. Brooks, Timothy P. Lutz, John Stang