Patents by Inventor Xiaocong ZHOU

Xiaocong ZHOU 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).

  • Halogenated S-(perfluoroalkyl)dibenzothiophenium salt and its production methods
    Patent number: 10155739
    Abstract: Halogenated S-(perfluoroalkyl)dibenzothiophenium salt represented by the following general formula (I): This compound is a new, reactive, and industrially useful reagent for perfluoroalkylating organic compounds. The reagent can be prepared by a one-pot process or a two-step reaction process from a halogenated biphenyl and easily isolated by a filtration method. In addition, the halogenated biphenyl can be recovered by desulfurization from a halogenated dibenzothiophene obtained as a side-product by the usage of the reagent.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: December 18, 2018
    Inventors: Teruo Umemoto, Bin Zhang, Tianhao Zhu, Xiaocong Zhou, Yuanqiang Li
  • Halogenated S-(perfluoroalkyl)dibenzothiophenium salt and its production methods
    Publication number: 20170349567
    Abstract: Halogenated S-(perfluoroalkyl)dibenzothiophenium salt represented by the following general formula (I): This compound is a new, reactive, and industrially useful reagent for perfluoroalkylating organic compounds. The reagent can be prepared by a one-pot process or a two-step reaction process from a halogenated biphenyl and easily isolated by a filtration method. In addition, the halogenated biphenyl can be recovered by desulfurization from a halogenated dibenzothiophene obtained as a side-product by the usage of the reagent.
    Type: Application
    Filed: December 30, 2015
    Publication date: December 7, 2017
    Inventors: Teruo UMEMOTO, Bin ZHANG, Tianhao ZHU, Xiaocong ZHOU, Yuanqiang LI