Patents by Inventor Yanqiu Sun

Yanqiu Sun 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).

  • Publication number: 20190355908
    Abstract: The present disclosure relates inter alia to an organic cocrystal comprising at least three compounds A, B and C, and the method to prepare the said organic cocrystal, and organic electronic devices comprising the said organic cocrystal, and their application and use.
    Type: Application
    Filed: May 17, 2018
    Publication date: November 21, 2019
    Inventors: Wenping HU, Yanqiu Sun
  • Patent number: 10364385
    Abstract: Low-dosage hydrate inhibitor (“LDHI”) compounds comprising multiple lipophilic tails and a hydrophilic head may be employed into fluids to inhibit agglomeration of hydrates, among other things. Suitable hydrophilic heads may include quaternary or tertiary ammonium cation moieties, and combinations thereof. Such LDHI compounds in some embodiments may include reaction products of DETA and/or other amines, fatty acid(s), and, optionally, alkyl halide(s). Compounds according to some embodiments may be employed in fluids in various environments, such as a conduit penetrating a subterranean formation, or a conduit carrying fluid in an industrial setting.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: July 30, 2019
    Assignee: Multi-Chem Group, LLC
    Inventors: Funian Zhao, Yanqiu Sun, Liangwei Qu, Erick J. Acosta
  • Patent number: 9676991
    Abstract: Low-dosage hydrate inhibitor (“LDHI”) compounds comprising multiple lipophilic tails and a hydrophilic head may be employed into fluids to inhibit agglomeration of hydrates, among other things. Suitable hydrophilic heads may include quaternary or tertiary ammonium cation moieties, and combinations thereof. Such LDHI compounds in some embodiments may include reaction products of DETA and/or other amines, fatty acid(s), and, optionally, alkyl halide(s). Compounds according to some embodiments may be employed in fluids in various environments, such as a conduit penetrating a subterranean formation, or a conduit carrying fluid in an industrial setting.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: June 13, 2017
    Assignee: Multi-Chem Group, LLC
    Inventors: Funian Zhao, Yanqiu Sun, Liangwei Qu, Erick J. Acosta