Patents by Inventor Hwee Ng

Hwee Ng 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: 20240024856
    Abstract: Disclosed herein are compositions having enhanced oxygen storage capacity (OSC). The OSC enhanced compositions contain cerium, zirconium, lanthanum, and neodymium, and a dopant element selected from the group consisting of Ti, Mn, Fe, Co, Cu, Zn, Ga, Ge, Ta, W, Mo, Nb, In, Sn, Ba, and mixtures thereof. In certain embodiments, these compositions contain two dopants. In certain embodiments of these compositions, the compositions comprising cerium, zirconium, lanthanum, and neodymium and one or more dopant elements have an OSC after aging at 1000° C. for 10 hours which is improved by 1 to 50%, compared to an undoped composition comprising cerium, zirconium, lanthanum, and neodymium. Aging can be conducted in an air environment. Further disclosed are processes of producing these compositions having enhanced oxygen storage capacity (OSC). The compositions can be used as a catalyst.
    Type: Application
    Filed: July 22, 2021
    Publication date: January 25, 2024
    Applicant: Neo Performance Materials (Singapore) Pte. Ltd.
    Inventors: Szu Hwee NG, Suzi DENG, Perlyn KOH, Steffi TAN
  • Patent number: 11751941
    Abstract: A catheter apparatus for assessing denervation comprises: an elongated catheter body; a deployable structure coupled to the catheter body, the deployable structure being deployable outwardly from and contractible inwardly toward the longitudinal axis of the catheter body; one or more ablation elements disposed on the deployable structure to move outwardly and inwardly with the deployable structure; one or more stimulation elements spaced from each other and disposed on the deployable structure to move with the deployable structure, the stimulation elements being powered to supply nerve stimulating signals to the vessel; and one or more recording elements spaced from each other and from the stimulation elements, the recording elements being disposed on the deployable structure to move with the deployable structure, the recording elements configured to record response of the vessel to the nerve stimulating signals.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: September 12, 2023
    Assignee: St. Jude Medical, Inc.
    Inventor: Kok-Hwee Ng
  • Publication number: 20230235377
    Abstract: A biological indicator includes: a BI housing; a germinant container inside the BI housing and housing a germinant composition; a germinant releaser configured to release the germinant composition from the germinant container; a germinant releaser support supporting the germinant releaser and configured to bring the germinant releaser into contact with the germinant container upon application of a force to the germinant releaser support or the germinant container; a first spore carrier inside the BI housing, the first spore carrier having a plurality of spores deposited at a first surface thereof; and an imaging window at a first surface of the BI housing. A BI reader is configured to detect and quantify the presence of live spores in the BI, and includes an excitation source, a camera for capturing images of the spores over time, and a processor for analyzing the images to determine the presence of live spores.
    Type: Application
    Filed: April 4, 2023
    Publication date: July 27, 2023
    Inventors: Adrian PONCE, Kok-Hwee Ng, Darshan Yeliyur Siddegowda, Jenna Zimmerman, Dat Nguyen, Mitchell London, Jake Douglas Knickerbocker, Edward MacLeod Perkins, Robert G. Waarts
  • Publication number: 20230149906
    Abstract: Disclosed herein are mixed oxide compositions comprising zirconium and cerium having a surprisingly small particle sizes. The compositions disclosed herein contain zirconium, cerium, optionally yttrium, and optionally one or more other rare earths other than cerium and yttrium. The compositions exhibit a particle size characterized by a D90 value of about 5 um to about 25 ?m and a D99 value of about 5 ?m to about 50 ?m. Further disclosed are processes of producing these compositions using oxalic acid and an alcohol and heating in the process. The compositions can be used as a catalyst and/or part of an automobile exhaust system.
    Type: Application
    Filed: February 19, 2021
    Publication date: May 18, 2023
    Applicant: Neo Performance Materials (Singapore) Pte. Ltd.
    Inventors: Barry HUANG, Perlyn KOH, Szu Hwee NG, Jesline Tang
  • Publication number: 20230129838
    Abstract: Disclosed herein are catalyst compositions having improved mercury intrusion volume and surface areas and processes for making these compositions. The enhanced compositions disclosed herein contain zirconium, cerium, optionally yttrium, and optionally one or more rare earths other than cerium and yttrium. Further disclosed are processes of producing these compositions involving supercritical drying after addition of mesitylene. The compositions can be used as a catalyst and/or as part of a catalyst system in an automobile exhaust system.
    Type: Application
    Filed: February 12, 2021
    Publication date: April 27, 2023
    Applicant: Neo Performance Materials (Singapore) Pte. Ltd.
    Inventors: Barry HUANG, Steffi TAN, Szu Hwee NG
  • Publication number: 20230094402
    Abstract: Disclosed herein are compositions containing zirconium and cerium having a surprisingly small particle size. The compositions disclosed herein contain zirconium, cerium, optionally yttrium, and optionally one or more other rare earth oxides other than cerium and yttrium. The compositions exhibit a particle size characterized by a D90 value of about 5 ?m to about 30 ?m and a D99 value of about 5 um to about 40 um. Further disclosed are processes of producing these compositions using oxalic acid and supercritical drying in the process. The compositions can be used as a catalyst and/or part of a catalytic system. The composition is prepared by co-precipitation using oxalic acid and supercritical drying.
    Type: Application
    Filed: February 19, 2021
    Publication date: March 30, 2023
    Applicant: Neo Performance Materials (Singapore) Pte. Ltd.
    Inventors: Barry HUANG, Perlyn KOH, Jesline TANG, Szu Hwee NG
  • Publication number: 20230083341
    Abstract: Disclosed herein are compositions comprising zirconium and cerium having a surprisingly small particle sizes. The compositions disclosed herein contain zirconium, cerium, optionally yttrium, and optionally one or more rare earths other than cerium and yttrium The compositions exhibit a particle size characterized by a Dso value of about 20 ?m to about 45 ?m and a D99 value of about 55 ?m to about 1 00 ?m. Further disclosed are processes of producing these compositions using oxalic acid in the process. The compositions can be used as a catalyst and/or part of a catalytic system for automobile exhaust gas.
    Type: Application
    Filed: February 19, 2021
    Publication date: March 16, 2023
    Applicant: Neo Performance Materials (Singapore) Pte. Ltd.
    Inventors: Barry HUANG, Perlyn KOH, Jesline TANG, Szu Hwee NG
  • Patent number: 11603551
    Abstract: A biological indicator includes: a BI housing; a germinant container inside the BI housing and housing a germinant composition; a germinant releaser configured to release the germinant composition from the germinant container; a germinant releaser support supporting the germinant releaser and configured to bring the germinant releaser into contact with the germinant container upon application of a force to the germinant releaser support or the germinant container; a first spore carrier inside the BI housing, the first spore carrier having a plurality of spores deposited at a first surface thereof; and an imaging window at a first surface of the BI housing. A BI reader is configured to detect and quantify the presence of live spores in the BI, and includes an excitation source, a camera for capturing images of the spores over time, and a processor for analyzing the images to determine the presence of live spores.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: March 14, 2023
    Assignee: STERITEC PRODUCTS MFG. CO., INC.
    Inventors: Adrian Ponce, Kok-Hwee Ng, Darshan Yeliyur Siddegowda, Jenna Zimmerman, Dat Nguyen, Mitchell London, Jake Douglas Knickerbocker, Edward MacLeod Perkins, Robert G. Waarts
  • Publication number: 20220388857
    Abstract: Dy2O3 particles of a nanoparticle scale have beneficial properties for ceramic and electronic uses. Disclosed herein are moderately dispersed Dy2O3 particles having regular morphology and lateral size ranging from about 10 nm to 1 ?m. The Dy2O3 particles may exhibit a narrow particle size distribution such that the difference between D10 and D90 is about 0.1 ?m to 1 ?m. Further disclosed are processes of producing these moderately dispersed Dy2O3 particles. These processes do not include grinding to obtain the particles. Also disclosed herein are uses for these Dy2O3? particles.
    Type: Application
    Filed: October 23, 2020
    Publication date: December 8, 2022
    Applicant: Neo Performance Materials (Singapore) Pte. Ltd.
    Inventors: Szu Hwee Ng, Suzi Deng
  • Publication number: 20220275423
    Abstract: A biological indicator includes: a BI housing; a germinant container inside the BI housing and housing a germinant composition; a germinant releaser configured to release the germinant composition from the germinant container; a germinant releaser support supporting the germinant releaser and configured to bring the germinant releaser into contact with the germinant container upon application of a force to the germinant releaser support or the germinant container; a first spore carrier inside the BI housing, the first spore carrier having a plurality of spores deposited at a first surface thereof; and an imaging window at a first surface of the BI housing. A BI reader is configured to detect and quantify the presence of live spores in the BI, and includes an excitation source, a camera for capturing images of the spores over time, and a processor for analyzing the images to determine the presence of live spores.
    Type: Application
    Filed: May 16, 2022
    Publication date: September 1, 2022
    Inventors: Adrian PONCE, Kok-Hwee Ng, Darshan Yeliyur Siddegowda, Jenna Zimmerman, Dat Nguyen, Mitchell London, Jake Douglas Knickerbocker, Edward MacLeod Perkins, Robert G. Waarts
  • Publication number: 20220275422
    Abstract: A biological indicator includes: a BI housing; a germinant container inside the BI housing and housing a germinant composition; a germinant releaser configured to release the germinant composition from the germinant container; a germinant releaser support supporting the germinant releaser and configured to bring the germinant releaser into contact with the germinant container upon application of a force to the germinant releaser support or the germinant container; a first spore carrier inside the BI housing, the first spore carrier having a plurality of spores deposited at a first surface thereof; and an imaging window at a first surface of the BI housing. A BI reader is configured to detect and quantify the presence of live spores in the BI, and includes an excitation source, a camera for capturing images of the spores over time, and a processor for analyzing the images to determine the presence of live spores.
    Type: Application
    Filed: May 16, 2022
    Publication date: September 1, 2022
    Inventors: Adrian PONCE, Kok-Hwee Ng, Darshan Yeliyur Siddegowda, Jenna Zimmerman, Dat Nguyen, Mitchell London, Jake Douglas Knickerbocker, Edward MacLeod Perkins, Robert G. Waarts
  • Publication number: 20220170067
    Abstract: A biological indicator includes: a BI housing; a germinant container inside the BI housing and housing a germinant composition; a germinant releaser configured to release the germinant composition from the germinant container; a germinant releaser support supporting the germinant releaser and configured to bring the germinant releaser into contact with the germinant container upon application of a force to the germinant releaser support or the germinant container; a first spore carrier inside the BI housing, the first spore carrier having a plurality of spores deposited at a first surface thereof; and an imaging window at a first surface of the BI housing. A BI reader is configured to detect and quantify the presence of live spores in the BI, and includes an excitation source, a camera for capturing images of the spores over time, and a processor for analyzing the images to determine the presence of live spores.
    Type: Application
    Filed: December 2, 2020
    Publication date: June 2, 2022
    Inventors: Adrian PONCE, Kok-Hwee Ng, Darshan Yeliyur Siddegowda, Jenna Zimmerman, Dat Nguyen, Mitchell London, Jake Douglas Knickerbocker, Edward MacLeod Perkins, Robert G. Waarts
  • Publication number: 20220133404
    Abstract: A catheter apparatus for assessing denervation comprises: an elongated catheter body; a deployable structure coupled to the catheter body, the deployable structure being deployable outwardly from and contractible inwardly toward the longitudinal axis of the catheter body; one or more ablation elements disposed on the deployable structure to move outwardly and inwardly with the deployable structure; one or more stimulation elements spaced from each other and disposed on the deployable structure to move with the deployable structure, the stimulation elements being powered to supply nerve stimulating signals to the vessel; and one or more recording elements spaced from each other and from the stimulation elements, the recording elements being disposed on the deployable structure to move with the deployable structure, the recording elements configured to record response of the vessel to the nerve stimulating signals.
    Type: Application
    Filed: January 12, 2022
    Publication date: May 5, 2022
    Inventor: Kok-Hwee NG
  • Patent number: 11241280
    Abstract: A catheter apparatus for assessing denervation comprises: an elongated catheter body; a deployable structure coupled to the catheter body, the deployable structure being deployable outwardly from and contractible inwardly toward the longitudinal axis of the catheter body; one or more ablation elements disposed on the deployable structure to move outwardly and inwardly with the deployable structure; one or more stimulation elements spaced from each other and disposed on the deployable structure to move with the deployable structure, the stimulation elements being powered to supply nerve stimulating signals to the vessel; and one or more recording elements spaced from each other and from the stimulation elements, the recording elements being disposed on the deployable structure to move with the deployable structure, the recording elements configured to record response of the vessel to the nerve stimulating signals.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: February 8, 2022
    Assignee: ST. JUDE MEDICAL, INC.
    Inventor: Kok-Hwee Ng
  • Patent number: 11034933
    Abstract: Disclosed herein are methods for selectively expanding cells expressing chimeric antigen receptors and enriching cells expressing chimeric antigen receptors in compositions and methods of treating HIV infection in subjects by administering the expanded and/or enriched cells.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: June 15, 2021
    Assignee: The Regents of the University of California
    Inventors: Otto O. Yang, Ayub Ali, Hwee Ng, Scott G. Kitchen, Jerome A. Zack, Irvin Chen
  • Patent number: 10864499
    Abstract: This disclosure generally relates to an oxide composition basically composed of cerium and zirconium that has exceptional and stable porosity, surface area and lattice oxygen mobility. The oxide composition can contain one or more other rare earth oxides other than cerium oxide. For example, some compositions can contain one or more of lanthanum oxide, yttrium oxide and neodymium oxide. The oxide composition can be useful as a catalyst, catalyst support, sensor applications and combinations thereof.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: December 15, 2020
    Assignee: NEO PERFORMANCE MATERIALS (SINGAPORE), PTE. LTD.
    Inventors: Dmitrios Psaras, Szu Hwee Ng, Happy, Shaun Pei Xiong Tio
  • Publication number: 20190024049
    Abstract: Disclosed herein are methods for selectively expanding cells expressing chimeric antigen receptors and enriching cells expressing chimeric antigen receptors in compositions and methods of treating HIV infection in subjects by administering the expanded and/or enriched cells.
    Type: Application
    Filed: January 27, 2017
    Publication date: January 24, 2019
    Applicant: The Regents of the University of California
    Inventors: Otto O. Yang, Ph.D., Ayub Ali, Hwee Ng, Scott G. Kitchen, Jerome A. Zack, Irvin Chen
  • Patent number: 10179026
    Abstract: A catheter apparatus for assessing denervation comprises: an elongated catheter body; a deployable structure coupled to the catheter body, the deployable structure being deployable outwardly from and contractible inwardly toward the longitudinal axis of the catheter body; one or more ablation elements disposed on the deployable structure to move outwardly and inwardly with the deployable structure; one or more stimulation elements spaced from each other and disposed on the deployable structure to move with the deployable structure, the stimulation elements being powered to supply nerve stimulating signals to the vessel; and one or more recording elements spaced from each other and from the stimulation elements, the recording elements being disposed on the deployable structure to move with the deployable structure, the recording elements configured to record response of the vessel to the nerve stimulating signals.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: January 15, 2019
    Assignee: ST. JUDE MEDICAL, INC.
    Inventor: Kok-Hwee Ng
  • Patent number: D1036694
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: July 23, 2024
    Assignee: STERITEC PRODUCTS MFG. CO., INC.
    Inventors: Adrian Ponce, Kok-Hwee Ng, Darshan Yeliyur Siddegowda, Jenna Zimmerman, Dat Nguyen, Mitchell London, Jake Douglas Knickerbocker
  • Patent number: D1037481
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: July 30, 2024
    Assignee: STERITEC PRODUCTS MFG. CO., INC.
    Inventors: Adrian Ponce, Kok-Hwee Ng, Darshan Yeliyur Siddegowda, Jenna Zimmerman, Dat Nguyen, Mitchell London, Jake Douglas Knickerbocker