Patents by Inventor Wei-ling Siew

Wei-ling Siew 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).

  • Method of dewatering in a continuous high internal phase emulsion foam forming process
    Patent number: 9809693
    Abstract: A method for continuous High Internal Phase Emulsion (HIPE) foam production. A HIPE is produced then extruded onto a belt. After polymerization, a portion of the saturated aqueous phase is removed using a vacuum box. A nip insert is inserted under the vacuum box to raise the vacuum box leading to improved uniformity of the HIPE in the cross direction along the belt.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: November 7, 2017
    Assignee: The Procter & Gamble Company
    Inventors: Wei-ling Siew, Jiajie Zhang, Aditya Garg
  • METHOD OF DEWATERING IN A CONTINUOUS HIGH INTERNAL PHASE EMULSION FOAM FORMING PROCESS
    Publication number: 20170037213
    Abstract: A method for continuous High Internal Phase Emulsion (HIPE) foam production. A HIPE is produced then extruded onto a belt. After polymerization, a portion of the saturated aqueous phase is removed using a vacuum box. A nip insert is inserted under the vacuum box to raise the vacuum box leading to improved uniformity of the HIPE in the cross direction along the belt.
    Type: Application
    Filed: October 20, 2016
    Publication date: February 9, 2017
    Inventors: Wei-ling Siew, Jiajie Zhang, Aditya Garg
  • Method of dewatering in a continuous high internal phase emulsion foam forming process
    Patent number: 9481777
    Abstract: A method for continuous High Internal Phase Emulsion (HIPE) foam production. A HIPE is produced then extruded onto a belt. After polymerization, a portion of the saturated aqueous phase is removed using a vacuum box. A nip insert is inserted under the vacuum box to raise the vacuum box leading to improved uniformity of the HIPE in the cross direction along the belt.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: November 1, 2016
    Assignee: The Procter & Gamble Company
    Inventors: Wei-ling Siew, Jiajie Zhang, Aditya Garg
  • METHOD OF DEWATERING IN A CONTINUOUS HIGH INTERNAL PHASE EMULSION FOAM FORMING PROCESS
    Publication number: 20130256935
    Abstract: A method for continuous High Internal Phase Emulsion (HIPE) foam production. A HIPE is produced then extruded onto a belt. After polymerization, a portion of the saturated aqueous phase is removed using a vacuum box. A nip insert is inserted under the vacuum box to raise the vacuum box leading to improved uniformity of the HIPE in the cross direction along the belt.
    Type: Application
    Filed: March 25, 2013
    Publication date: October 3, 2013
    Applicant: The Procter & Gamble Company
    Inventors: Wei-ling Siew, Jiajie Zhang, Aditya Garg