Patents by Inventor Kevin Chen

Kevin Chen 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: 20230115272
    Abstract: A classifier capable of predicting if cylinder valves of an engine commanded to activate or deactivate failed to activate or deactivate respectively. In various embodiments, the classifier can be binary or multi-class Logistic Regression, or a Multi-Layer Perceptron (MLP) classifier. The variable displacement engine can operate in cooperation with a variable displacement engine using cylinder deactivation (CDA) or skip fire, including dynamic skip fire and/or multi-level skip fire.
    Type: Application
    Filed: July 8, 2022
    Publication date: April 13, 2023
    Inventors: Louis J. SERRANO, Elliott A. ORTIZ-SOTO, Shikui Kevin CHEN, Li-Chun CHIEN, Aditya MANDAL
  • Patent number: 11624341
    Abstract: A system and method of integrating an engine having dynamic skip fire control with an exhaust gas recirculation system in a turbocharged internal combustion engine is described. An engine control system determines an appropriate firing pattern based at least in part on a desired exhaust gas recirculation flow rate. Signals from sensors in the intake manifold and exhaust system may also be used as part of a feedback loop to determine a desired exhaust gas recirculation flow rate.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: April 11, 2023
    Assignees: Tula Technology, Inc., Cummins Inc.
    Inventors: Xin Yuan, Shikui Kevin Chen, Jennifer K. Light-Holets, Scott R. Bardakjy
  • Patent number: 11624335
    Abstract: A method of operating an engine is provided. An exhaust valve actuation fault is detected for a first exhaust valve associated with a first cylinder during a first working cycle. In response to the detection of the exhaust valve actuation fault, fueling to at least the first cylinder is cut off. Actuation of the first exhaust valve is attempted in second working cycles that follow the first working cycle, wherein the second working cycles are not fueled. Whether or not the first exhaust valve actuated properly during the second working cycles is determined. Operation of the first cylinder is resumed when it is determined that the first exhaust valve actuated properly. Operation of the first cylinder is not resumed when it is determined that the first exhaust valve did not actuate properly.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: April 11, 2023
    Assignee: Tula Technology, Inc.
    Inventors: Robert C. Wang, Louis J. Serrano, Shikui Kevin Chen
  • Patent number: 11620403
    Abstract: Systems and methods for data aggregation and processing are provided in manner that is decentralized and preserves privacy. A data aggregation and computation system may include an interface, a controller, and one or more clusters of computation nodes. The interface may receive an inquiry from a requesting entity for computing information regarding an individual based on pieces of information held by a plurality of entities. The controller may communicate an identifier for the individual to a processor system associated with each of the entities based on the inquiry. The clusters of computation nodes may each receive encrypted data fragments from each of the processor systems, the data fragments comprising unrecognizable fragments that no individual processor system can re-assemble to recover the information, perform secure, multi-party computations based on the data fragments, and generate a result based on the secure, multi-party computations for the individual.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: April 4, 2023
    Assignee: Experian Information Solutions, Inc.
    Inventors: Kevin Chen, Hua Li, Juncheng Liu, Zhixuan Wang, Shumin Guo, Eric Haller, Steve Yin
  • Patent number: 11619187
    Abstract: A system and method for transitioning a firing fraction of a variable displacement internal combustion engine when generating a desired torque output. During and following the transition to the second firing fraction, a combustion recipe is ascertained and used operating the cylinders of the variable displacement internal combustion engine to generate the desired torque output. The recipe is preferably optimized for the engine operating at the second firing fraction, at least relative to the previous charge of the previous combustion recipe used with the first firing fraction.
    Type: Grant
    Filed: April 6, 2022
    Date of Patent: April 4, 2023
    Assignees: Tula Technology, Inc., Cummins Inc.
    Inventors: Louis J. Serrano, Xiaoping Cai, Shikui Kevin Chen, Benjamin M. Wolk, Avra Brahma, Justin R. Lee
  • Publication number: 20230062872
    Abstract: A formulation for oral administration comprises an expectorant, an analgesic, and at least one additional active ingredient having a modified release providing a therapeutic effect for each of the active ingredients for up to 12 hours.
    Type: Application
    Filed: February 9, 2022
    Publication date: March 2, 2023
    Inventors: Raghu Cavatur, Kevin Chen, Matthew Kaser, Hongchun Qiu, Ernest Joseph Woodhouse, Josef Borovicka, Elliot Wilkinson
  • Patent number: 11573776
    Abstract: Data transformation in a distributed system of applications and data repositories is described. The subsystems for the overall framework are distributed, thereby allowing for customization to require only isolated changes to one or more subsystems. In one embodiment, a source code repository is used to receive and store source code. A build subsystem can retrieve source code from the source code repository and build it, using one or more criteria. By building the source code, the build subsystem can generate an artifact, which is executable code, such as a JAR or SQL file. Likewise, by building the source code, the build subsystem can generate one or more job specifications for executing the executable code. In one embodiment, the artifact and job specification may be used to launch an application server in a cluster. The application server can then receive data transformation instructions and execute the data transformation instructions.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: February 7, 2023
    Assignee: PALANTIR TECHNOLOGIES INC.
    Inventors: Robert Fink, Matthew Cheah, Mingyu Kim, Lynn Cuthriell, Divyanshu Arora, Justin Uang, Jared Newman, Jakob Juelich, Kevin Chen, Mark Elliot, Michael Nazario
  • Patent number: 11560818
    Abstract: System and methods are described for optimizing exhaust flow rate and temperature during specified operational periods warm-up and keep-warm conditions, by minimizing or maximizing heat flux during those specified operational periods.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: January 24, 2023
    Assignee: Tula Technology, Inc.
    Inventors: Matthew A. Younkins, Shikui Kevin Chen
  • Patent number: 11550886
    Abstract: Features are described for efficiently and accurately identifying a user of an electronic device with limited user interaction. The features include receiving a mobile device identifier from the mobile device. The features include transmitting the mobile device identifier to a service provider associated with the mobile device. The features include receiving information identifying the user from the service provider. The features include identifying a set of candidates associated with at least a portion of the information. The features include generating a metric for the candidates included in the set of candidates. An individual metric indicates a degree of relatedness between a value for the user for the at least one data field and a value for a candidate for the at least one data field. The features include identifying the user as a specific candidate included in the set of candidates based on the metric corresponding to a threshold.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: January 10, 2023
    Assignee: Experian Information Solutions, Inc.
    Inventors: Steven Yin, Kevin Chen, Eric Haller, Alan Tsang, David Kerry, Derek Toub, Jack Yu, Zhixuan Wang, Christopher Wheeler, Sreeram Upendran
  • Publication number: 20230005172
    Abstract: A method includes receiving a first image, receiving a motion dataset, determining a motion level, determining an initialization state, and determining a tracking level. In a first condition, the method includes generating a first image pyramid, detecting a plurality of features in the first image pyramid using a first detector threshold, and generating a first set of detected keypoints from the plurality of features. In a second condition, the method includes generating a second image pyramid, detecting the plurality of features in the second image pyramid using a second detector threshold, the second detector threshold being less restrictive than the first detector threshold, and generating a second set of detected keypoints. In a third condition, the method includes detecting the plurality of features in the first image according to the first detector threshold and generating a third set of detected keypoint.
    Type: Application
    Filed: September 8, 2022
    Publication date: January 5, 2023
    Inventor: Kevin Chen
  • Publication number: 20220404050
    Abstract: Techniques for performing an emissions demand response (EDR) event are described. In an example, a cloud-based HVAC control system may obtain a first emissions rate forecast and generate an EDR event with a start time and end time based on the first emissions rate forecast. The EDR event may then be transmitted to a thermostat and stored in a memory of the thermostat. At the start time, the thermostat may commence controlling an HVAC system according to the EDR event. After the start time and prior to the end time, the cloud-based HVAC control system may obtain a second emissions rate forecast and generate a modified EDR event with a modified end time. The modified EDR event may be transmitted to the thermostat before the end time and/or the modified end time whereupon the thermostat may control the HVAC system accordingly until the modified end time is reached.
    Type: Application
    Filed: June 17, 2021
    Publication date: December 22, 2022
    Applicant: Google LLC
    Inventors: Samuel Y. Chang, Kristoffer J. Donhowe, Ramya Bhagavatula, Jeffrey Gleeson, Kevin Chen
  • Publication number: 20220404049
    Abstract: Techniques for performing an emissions demand response event are described. In an example, a cloud-based HVAC control server system receives an emissions rate forecast for a predefined future time period. Using the emissions rate forecast, a plurality of emissions differential values are created for a plurality of points in time during the predefined future time period. The emissions differential values represent a change in predicted emissions over time. Based on the plurality of emissions differential values and a predefined maximum number of emissions demand response events, an emissions demand response event is generated during the predefined future time period. The cloud-based HVAC control server system then causes a thermostat to control an HVAC system in accordance with the generated emissions demand response event.
    Type: Application
    Filed: June 17, 2021
    Publication date: December 22, 2022
    Applicant: Google LLC
    Inventors: Samuel Y. Chang, Kristoffer J. Donhowe, Ramya Bhagavatula, Jeffrey Gleeson, Kevin Chen
  • Publication number: 20220404052
    Abstract: Techniques for performing an emissions demand response event are described. In an example, a cloud-based HVAC control server system obtains an emissions rate forecast for a predefined future time period. Using the emissions rate forecast, a future emissions rate event during the predefined future time period is identified. The future emissions rate event comprises an indication of predicted magnitude and a time period when a predicted emissions rate will be at an increased or decreased level. A confidence value indicating a certainty of the future emissions rate event occurring as predicted is determined. Based on the identified future emissions rate event and the confidence value, an emissions demand response event having a start time and an end time during the future emissions rate event is generated. The cloud-based HVAC control server system then causes a thermostat to control an HVAC system in accordance with the generated emissions demand response event.
    Type: Application
    Filed: June 17, 2021
    Publication date: December 22, 2022
    Applicant: Google LLC
    Inventors: Samuel Y. Chang, Kristoffer J. Donhowe, Ramya Bhagavatula, Jeffrey Gleeson, Kevin Chen
  • Publication number: 20220404051
    Abstract: Techniques for performing an emissions demand response event are described. In an example, a cloud-based HVAC control server system obtains a history of emissions rates. Based on the history of emissions rates, a future time period of predicted high emissions is identified. An emission demand response event participation level of an account mapped to a thermostat is determined for the future time period of predicted high emissions. The emissions demand response event participation level may be one of a plurality of emissions demand response event participation levels. based on the emissions demand response event participation level of the account, an emissions demand response event is generated during the future time period of predicted high emissions. The cloud-based HVAC control server system then causes a thermostat to control an HVAC system in accordance with the generated emissions demand response event.
    Type: Application
    Filed: June 17, 2021
    Publication date: December 22, 2022
    Applicant: Google LLC
    Inventors: Samuel Y. Chang, Kristoffer J. Donhowe, Ramya Bhagavatula, Jeffrey Gleeson, Kevin Chen
  • Publication number: 20220372925
    Abstract: A system and method of integrating an engine having dynamic skip fire control with an exhaust gas recirculation system in a turbocharged internal combustion engine is described. An engine control system determines an appropriate firing pattern based at least in part on a desired exhaust gas recirculation flow rate. Signals from sensors in the intake manifold and exhaust system may also be used as part of a feedback loop to determine a desired exhaust gas recirculation flow rate.
    Type: Application
    Filed: August 8, 2022
    Publication date: November 24, 2022
    Inventors: Xin YUAN, Shikui Kevin CHEN, Jennifer K. LIGHT-HOLETS, Scott R. BARDAKJY
  • Patent number: 11492987
    Abstract: A system and method for controlling an internal combustion engine involving (1) cylinder trapping strategies where one of several pneumatic spring types are dynamically selected for cylinders based at least partially on a predicted number of upcoming skips for each of the cylinders respectively and/or (2) staggering various valvetrain dependent operational engine strategies as operating conditions permit as the internal combustion engine warms up following a cold start.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: November 8, 2022
    Assignee: Tula Technology, Inc.
    Inventors: Shikui Kevin Chen, Louis J. Serrano, Vijay Srinivasan, Elliott A. Ortiz-Soto, Matthew A. Younkins
  • Publication number: 20220348633
    Abstract: In one embodiment, the present disclosure provides an engineered cell having a first chimeric antigen receptor polypeptide including a first antigen recognition domain, a first signal peptide, a first hinge region, a first transmembrane domain, a first co-stimulatory domain, and a first signaling domain; and a second chimeric antigen receptor polypeptide including a second antigen recognition domain, a second signal peptide, a second hinge region, a second transmembrane domain, a second co-stimulatory domain, and a second signaling domain; wherein the first antigen recognition domain is different than the second antigen recognition domain.
    Type: Application
    Filed: May 3, 2022
    Publication date: November 3, 2022
    Inventors: Yupo MA, Kevin PINZ, Xun JIANG, Masayuki WADA, Kevin CHEN
  • Publication number: 20220341819
    Abstract: A diagnostic system and method that (a) that uses models indicative of both successful firing and skips to determine if cylinders of a skip fire controlled internal combustion engine have successfully fired or successfully skipped and (b) uses filtered exhaust gas pressure readings for detecting faults associated with EGR systems and/or turbocharger systems.
    Type: Application
    Filed: July 11, 2022
    Publication date: October 27, 2022
    Inventor: Shikui Kevin CHEN
  • Publication number: 20220331353
    Abstract: A method of treating endothelial dysfunction in a subject can include: identifying damage in an endothelial glycocalyx (EGX) of the subject, and administering to the subject a combination of a nitric oxide (NO) precursor and a hydrogen sulfide (H2S) precursor in an amount and at a frequency sufficient to stabilize and reverse damage in the EGX. A therapeutic composition for treating endothelial dysfunction can include a combination of a nitric oxide (NO) precursor and a hydrogen sulfide (H2S) precursor in an amount sufficient to sustain an increase of bioavailable NO for the treatment of endothelial dysfunction, and a pharmaceutically acceptable carrier.
    Type: Application
    Filed: May 2, 2022
    Publication date: October 20, 2022
    Inventors: Chen Chen, Edward Hoyt, Kevin Chen, Derek Chen
  • Patent number: 11467338
    Abstract: A method of making an optical fiber sensor device for distributed sensing includes generating a laser beam comprising a plurality of ultrafast pulses, and focusing the laser beam into a core of an optical fiber to form a nanograting structure within the core, wherein the nanograting structure includes a plurality of spaced nanograting elements each extending substantially parallel to a longitudinal axis of optical fiber. Also, an optical fiber sensor device for distributed sensing includes an optical fiber having a longitudinal axis, a core, and a nanograting structure within the core, wherein the nanograting structure includes a plurality of spaced nanograting elements each extending substantially parallel to the longitudinal axis of the optical fiber. Also, a distributed sensing method and system and an energy production system that employs such an optical fiber sensor device.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: October 11, 2022
    Assignee: University of Pittsburgh-Of the Commonwealth System of Higher Education
    Inventors: Peng Kevin Chen, Aidong Yan, Michael P. Buric, Paul R. Ohodnicki, Sheng Huang