Patents by Inventor Catherine A. Tang

Catherine A. Tang 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).

  • Ziegler-Natta catalyzed polyisoprene articles
    Patent number: 11753487
    Abstract: A polymeric article comprises an elastomeric layer comprising cured synthetic polyisoprene particles that comprise a Ziegler-Natta catalyzed polyisoprene.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: September 12, 2023
    Assignee: Lifestyles Healthcare PTE. Ltd.
    Inventors: KC Nguyen, Chayapon Ngowprasert, Catherine Tang Kum Choo
  • Ziegler-Natta Catalyzed Polyisoprene Articles
    Publication number: 20220204662
    Abstract: A polymeric article comprises an elastomeric layer comprising cured synthetic polyisoprene particles that comprise a Ziegler-Natta catalyzed polyisoprene.
    Type: Application
    Filed: March 18, 2022
    Publication date: June 30, 2022
    Applicant: LifeStyles Healthcare Pte. Ltd.
    Inventors: KC Nguyen, Chayapon Ngowprasert, Catherine Tang Kum Choo
  • Ziegler-Natta Catalyzed Polyisoprene Articles
    Publication number: 20200239607
    Abstract: A polymeric article comprises an elastomeric layer comprising cured synthetic polyisoprene particles that comprise a Ziegler-Natta catalyzed polyisoprene.
    Type: Application
    Filed: April 14, 2020
    Publication date: July 30, 2020
    Inventors: KC Nguyen, Chayapon Ngowprasert, Catherine Tang Kum Choo
  • Ziegler-Natta catalyzed polyisoprene articles
    Patent number: 10662269
    Abstract: A polymeric article comprises an elastomeric layer comprising cured synthetic polyisoprene particles that comprise a Ziegler-Natta catalyzed polyisoprene.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: May 26, 2020
    Assignee: Lifestyles Healthcare PTE. Ltd.
    Inventors: K C Nguyen, Chayapon Ngowprasert, Catherine Tang Kum Choo
  • Ziegler-Natta Catalyzed Polyisoprene Articles
    Publication number: 20190062471
    Abstract: A polymeric article comprises an elastomeric layer comprising cured synthetic polyisoprene particles that comprise a Ziegler-Natta catalyzed polyisoprene.
    Type: Application
    Filed: August 29, 2018
    Publication date: February 28, 2019
    Inventors: KC Nguyen, Chayapon Ngowprasert, Catherine Tang Kum Choo
  • Spool butt unwind system
    Patent number: 5785814
    Abstract: The invention is an apparatus and method for unwinding the butt portion of a reel of paper from the reel spool and delivering it to a repulper. It consists of a floor mounted stand with appropriate cradling surfaces to hold the spool butt. An air jet manifold is located at floor level below the stand. Air jets from the manifold direct the sheet toward the repulper. As the sheet enters the repulper it is met by water showers that direct it into the opening of the repulper. Once the sheet is engaged by the air jets and water showers it is continuously unrolled by the force delivered by these devices acting against the sheet. An accelerating mechanism may be provided to begin unrolling the paper from the spool and a brake mechanism is useful for stopping rotation of the spool after all of the paper has been removed.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: July 28, 1998
    Assignee: North Pacific Paper Corporation
    Inventors: Catherine A. Tang, Ralph W. Healy