Patents by Inventor Ryan Ma

Ryan Ma 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: 20250015327
    Abstract: A system includes a fuel cell stack and a controller. The controller is configured to operate the fuel cell stack with a given air stoic ratio while a temperature of the fuel cell stack is greater than a temperature threshold and to operate the fuel cell stack with a lower air stoic ratio, to thereby suppress a stack voltage of the fuel cell stack in order to increase heat generation of the fuel cell stack, while the temperature of the fuel cell stack is lower than the temperature threshold.
    Type: Application
    Filed: July 7, 2023
    Publication date: January 9, 2025
    Applicant: Ford Global Technologies, LLC
    Inventors: Hao WANG, Zeng QIU, Matthew RILEY, Ryan MA, Michiel J. VAN NIEUWSTADT
  • Patent number: 11967744
    Abstract: A fuel cell vehicle includes a bypass valve positioned downstream of a compressor and upstream of a fuel cell stack to selectively direct airflow from the compressor to an exhaust bypassing the fuel cell in an attempt to clear a partially or fully obstructed exhaust pipe. The bypass valve may be opened by a controller when an exhaust throttle valve is at or near a wide-open throttle position. The controller may also increase compressor flow and adjust airflow to the fuel cell stack until compressor pressure, speed, or temperature exceed corresponding limits.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: April 23, 2024
    Assignee: Ford Global Technologies, LLC
    Inventors: Martin Dale Pryor, Ryan Ma, Craig Michael Mathie
  • Publication number: 20230261226
    Abstract: A fuel cell vehicle includes a bypass valve positioned downstream of a compressor and upstream of a fuel cell stack to selectively direct airflow from the compressor to an exhaust bypassing the fuel cell in an attempt to clear a partially or fully obstructed exhaust pipe. The bypass valve may be opened by a controller when an exhaust throttle valve is at or near a wide-open throttle position. The controller may also increase compressor flow and adjust airflow to the fuel cell stack until compressor pressure, speed, or temperature exceed corresponding limits.
    Type: Application
    Filed: February 11, 2022
    Publication date: August 17, 2023
    Applicant: Ford Global Technologies, LLC
    Inventors: Martin Dale Pryor, Ryan Ma, Craig Michael Mathie
  • Patent number: 11158427
    Abstract: According to an embodiment of the present invention, a system analyzes a collection of medical documents to identify within document content risk factors of medical conditions associated with corresponding activities. A processor in the system maps the identified risk factors of the activities to one or more medical tests for the associated medical conditions, and analyzes a medical record and social media communications of a patient to determine participation of the patient in one or more of the corresponding activities. The processor determines the one or more medical tests to conduct from the mapping based on the risk factors associated with the determined activities of the patient. Embodiments of the present invention further include a method and computer program product for analyzing patient activity to conduct appropriate medical tests in substantially the same manner described above.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: October 26, 2021
    Assignee: International Business Machines Corporation
    Inventors: Ryan Ma, Raghavendra Mujumdar, William G. O'Keeffe, Ravi Tejwani
  • Publication number: 20210281648
    Abstract: A geolocation extraction and propagation system for assigning a geolocation to a new user of a website is disclosed herein. An implementation of the geolocation extraction and propagation system assigns a geolocation to a website based on content of various web pages of the website as well as geolocations assigned to various users associated with the website. The geolocation extraction and propagation system further propagates the geolocation of the website to the new user by assigning the geolocation of the website to the new user in response to the new user's click on a web page of the website.
    Type: Application
    Filed: July 14, 2016
    Publication date: September 9, 2021
    Inventors: Siddhartha ARORA, Vaibhav PARIKH, Ryan MA, Ovi DAN, Beibei CHENG
  • Publication number: 20190026438
    Abstract: According to an embodiment of the present invention, a system analyzes a collection of medical documents to identify within document content risk factors of medical conditions associated with corresponding activities. A processor in the system maps the identified risk factors of the activities to one or more medical tests for the associated medical conditions, and analyzes a medical record and social media communications of a patient to determine participation of the patient in one or more of the corresponding activities. The processor determines the one or more medical tests to conduct from the mapping based on the risk factors associated with the determined activities of the patient. Embodiments of the present invention further include a method and computer program product for analyzing patient activity to conduct appropriate medical tests in substantially the same manner described above.
    Type: Application
    Filed: July 21, 2017
    Publication date: January 24, 2019
    Inventors: Ryan Ma, Raghavendra Mujumdar, William G. O'Keeffe, Ravi Tejwani
  • Publication number: 20030070462
    Abstract: Controlled release fertilizers are provided and methods for their preparation, wherein the controlled release fertilizers are obtained through self-assembling molecules on the surfaces of the fertilizer particles, and then, preferably, linking these molecules into a network with another component. The designed molecules have a hydrophilic portion, which can interact with fertilizers, and a hydrophobic portion that make the molecule self-assemble and setup a moisture barrier. The molecules also preferably have at least two functional groups in order to form a network.
    Type: Application
    Filed: November 13, 2002
    Publication date: April 17, 2003
    Applicant: MISSISSIPPI CHEMICAL CORPORATION
    Inventors: Zhongxin Ryan Ma, Donald R. Thomas, Corinne G. Ciaccio
  • Patent number: 6540808
    Abstract: Controlled release fertilizers are provided and methods for their preparation, wherein the controlled release fertilizers are obtained through self-assembling molecules on the surfaces of the fertilizer particles, and then, preferably, linking these molecules into a network with another component. The designed molecules have a hydrophilic portion, which can interact with fertilizers, and a hydrophobic portion that make the molecule self-assemble and setup a moisture barrier. The molecules also preferably have at least two functional groups in order to form a network.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: April 1, 2003
    Assignee: Mississippi Chemical Corporation
    Inventors: Zhongxin Ryan Ma, Donald R. Thomas, Corinne G. Ciaccio
  • Publication number: 20020144528
    Abstract: Controlled release fertilizers are provided and methods for their preparation, wherein the controlled release fertilizers are obtained through self-assembling molecules on the surfaces of the fertilizer particles, and then, preferably, linking these molecules into a network with another component. The designed molecules have a hydrophilic portion, which can interact with fertilizers, and a hydrophobic portion that make the molecule self-assemble and setup a moisture barrier. The molecules also preferably have at least two functional groups in order to form a network.
    Type: Application
    Filed: April 9, 2001
    Publication date: October 10, 2002
    Applicant: Mississippi Chemical Corporation
    Inventors: Zhongxin Ryan MA, Donald R. Thomas, Corinne G. Ciaccio
  • Patent number: D940779
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: January 11, 2022
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Quinci Miller, Andrew Stark, Chi T Tran, Ryan Ma Nilsen