Patents by Inventor Ruikuan YUE

Ruikuan YUE 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).

  • Method for preparing 1,1?-ethylene-2,2?-bipyridinium dichloride
    Patent number: 10858337
    Abstract: A method for preparing 1,1?-ethylene-2,2?-bipyridinium dichloride includes mixing an aqueous diquat dibromide solution with hydrochloric acid, adding dropwise to a mixture of an organic solvent, a bromine absorbent, and an oxidant, and reacting to produce 1,1?-ethylene-2,2?-bipyridinium dichloride.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: December 8, 2020
    Assignee: NANJING REDSUN BIOCHEMISTRY CO., LTD.
    Inventors: Ruikuan Yue, Yi Xue, Honglong Chen, Wenkui Wang, Chaoran Luo, Xinchun Chen, Dianhai Zhou, Jianhua Jiang, Fujun Wang
  • METHOD FOR PREPARING 1,1'-ETHYLENE-2,2'-BIPYRIDINIUM DICHLORIDE
    Publication number: 20200308138
    Abstract: A method for preparing 1,1?-ethylene-2,2?-bipyridinium dichloride includes mixing an aqueous diquat dibromide solution with hydrochloric acid, adding dropwise to a mixture of an organic solvent, a bromine absorbent, and an oxidant, and reacting to produce 1,1?-ethylene-2,2?-bipyridinium dichloride.
    Type: Application
    Filed: October 13, 2017
    Publication date: October 1, 2020
    Applicant: NANJING REDSUN BIOCHEMISTRY CO., LTD.
    Inventors: Ruikuan YUE, Yi XUE, Honglong CHEN, Wenkui WANG, Chaoran LUO, Xinchun CHEN, Dianhai ZHOU, Jianhua JIANG, Fujun WANG