Patents by Inventor Ming Yean Liew

Ming Yean Liew 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).

  • Low foam media cleaning detergent with nonionic surfactants
    Patent number: 9040473
    Abstract: A detergent for cleaning media is provided. The detergent comprises deionized water, between about 1% and about 5% by weight of a nonionic surfactant having an hydrophile/lipophile balance (HLB) value between about 10 and about 20, and an ethoxylation level between about 5 and about 20, between about 1% and about 5% by weight of a dispersing agent, between about 3% and about 10% by weight of a chelating agent comprising phosphonic acid, and between about 2% and about 6% by weight of an inorganic salt.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: May 26, 2015
    Assignee: WD Media, LLC
    Inventors: EE Boon Quah, Kwai Cheang Wong, Ming Yean Liew, Chung Lieh Chua, Yasuhiro Suzuki