Patents by Inventor Xuefang Li

Xuefang Li 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).

  • DEFOAMER COMPOSITION BASED ON OIL-IN-WATER EMULSIONS
    Publication number: 20240141185
    Abstract: A defoamer composition contains I) an oil phase, II) a water phase, III) at least one O/W emulsifier, and IV) at least one W/O emulsifier as co-emulsifier. In the defoamer composition, the amount of the water phase is 20-90 wt. %, preferably 60-85 wt. % based on the total weight of the composition. The oil phase is an oil-in-oil emulsion containing A) at least one or more vegetable oil as component A, B) at least one or more polyether ester as component B, C) at least one or more polyether-modified polysiloxane, and optionally D) at least one or more hydrophobic particle as component D.
    Type: Application
    Filed: October 5, 2023
    Publication date: May 2, 2024
    Applicant: Evonik Operations GmbH
    Inventors: Yi SUN, Yanling Hu, Jonas Niedballa, Daniela Münster, Xuefang Chen, Gang Li, HaiYi Fan, Susanne Struck
  • Solar-powered toy robot
    Patent number: D937365
    Type: Grant
    Filed: September 27, 2020
    Date of Patent: November 30, 2021
    Inventor: Xuefang Li
  • Solar-powered toy robot
    Patent number: D937941
    Type: Grant
    Filed: September 27, 2020
    Date of Patent: December 7, 2021
    Inventor: Xuefang Li