Patents by Inventor Puth PROEUNG

Puth PROEUNG 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).

  • POROUS POLYETHYLENE FILTER MEMBRANE WITH ASYMMETRIC PORE STRUCTURE, AND RELATED FILTERS AND METHODS
    Publication number: 20230390709
    Abstract: Described are liquid-flowable, porous polyethylene filter membranes that include two opposing sides and that have an asymmetric pore structure; filter components and filters that include this type of porous polyethylene filter membrane; methods of making the porous polyethylene filter membranes, filter components, and filters; and methods of using a porous polyethylene filter membrane, filter component, or filter, to filter a fluid such as a liquid chemical to remove unwanted material from the fluid.
    Type: Application
    Filed: August 23, 2023
    Publication date: December 7, 2023
    Inventors: Kwok-Shun CHENG, Rajni PATEL, Maybelle WOO, Puth PROEUNG
  • Method of forming a laminated single layer composite membrane
    Patent number: 11701623
    Abstract: The present disclosure relates to a composite membrane formed by lamination of two or more separate porous polymeric layers, as well as to a method and system for lamination. Advantageously, the resulting composite is a single layer, being difficult to separate into its component layers, yet effectively maintains the filtering capabilities of the component layers when not laminated.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: July 18, 2023
    Assignee: ENTEGRIS, INC.
    Inventors: Dongzhu Wu, Kwok Shun Cheng, Rajnikant B. Patel, Tony Yu, Puth Proeung, Maybelle Woo
  • METHOD OF FORMING A LAMINATED SINGLE LAYER COMPOSITE MEMBRANE
    Publication number: 20210354092
    Abstract: The present disclosure relates to a composite membrane formed by lamination of two or more separate porous polymeric layers, as well as to a method and system for lamination. Advantageously, the resulting composite is a single layer, being difficult to separate into its component layers, yet effectively maintains the filtering capabilities of the component layers when not laminated.
    Type: Application
    Filed: May 14, 2021
    Publication date: November 18, 2021
    Inventors: Dongzhu WU, Kwok Shun CHENG, Rajnikant B. PATEL, Tony YU, Puth PROEUNG, Maybelle WOO
  • POROUS POLYETHYLENE FILTER MEMBRANE WITH ASYMMETRIC PORE STRUCTURE, AND RELATED FILTERS AND METHODS
    Publication number: 20200139309
    Abstract: Described are liquid-flowable, porous polyethylene filter membranes that include two opposing sides and that have an asymmetric pore structure; filter components and filters that include this type of porous polyethylene filter membrane; methods of making the porous polyethylene filter membranes, filter components, and filters; and methods of using a porous polyethylene filter membrane, filter component, or filter, to filter a fluid such as a liquid chemical to remove unwanted material from the fluid.
    Type: Application
    Filed: October 8, 2019
    Publication date: May 7, 2020
    Inventors: Kwok-Shun CHENG, Rajni PATEL, Maybelle WOO, Puth PROEUNG