Patents by Inventor Liyuan NIU

Liyuan NIU 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).

  • Fluorescent brightener premix
    Patent number: 9951298
    Abstract: A fluorescent brightener premix comprising from 1% to 15% of a fluorescent brightener and 10% to 80% of an alkoxylated nonionic surfactant, by weight of the premix. The premix, upon being added into a liquid composition, has minimized impact on the pH of the liquid composition.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: April 24, 2018
    Assignee: The Procter & Gamble Company
    Inventors: Fei Li, Fangfang Feng, Liyuan Niu
  • Low surfactant, high carbonate liquid laundry detergent compositions with improved suds profile
    Patent number: 9340753
    Abstract: The present invention relates to a stable liquid laundry detergent composition containing low levels of a C10-C20 linear alkyl benzene sulphonate surfactant in combination with high levels of a water-soluble alkali metal carbonate for achieving improved suds profile.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: May 17, 2016
    Assignee: The Procter & Gamble Company
    Inventors: Ming Tang, Qing Chen, Liyuan Niu, Bing Xu
  • LOW SURFACTANT, HIGH CARBONATE LIQUID LAUNDRY DETERGENT COMPOSITIONS WITH IMPROVED SUDS PROFILE
    Publication number: 20150337236
    Abstract: The present invention relates to a stable liquid laundry detergent composition containing low levels of a C10-C20 linear alkyl benzene sulphonate surfactant in combination with high levels of a water-soluble alkali metal carbonate for achieving improved suds profile.
    Type: Application
    Filed: May 11, 2015
    Publication date: November 26, 2015
    Inventors: Ming TANG, Qing CHEN, Liyuan NIU, Bing XU
  • FLUORESCENT BRIGHTENER PREMIX
    Publication number: 20150203792
    Abstract: A fluorescent brightener premix comprising from 1% to 15% of a fluorescent brightener and 10% to 80% of an alkoxylated nonionic surfactant, by weight of the premix. The premix, upon being added into a liquid composition, has minimized impact on the pH of the liquid composition.
    Type: Application
    Filed: January 13, 2015
    Publication date: July 23, 2015
    Inventors: Fei LI, Fangfang FENG, Liyuan NIU