Patents by Inventor Chengye Yuan

Chengye Yuan 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).

  • Backflow cascade novel process for producing lithium-7 isotope
    Patent number: 9963760
    Abstract: Provided is a backflow cascade novel process for producing a lithium-7 isotope. The process comprises an upper backflow section, an extraction section, an enrichment section, a lower backflow section, and a product acquiring section. Upper backflow phase-conversion liquid and lower backflow phase-conversion liquid are respectively added to the upper backflow section and the lower backflow section, and upper backflow phase-conversion liquid and lower backflow phase-conversion liquid of the lithium material are controlled; the product is precisely acquired in the product acquiring section; an organic phase is added to the upper backflow section, and is recycled in the lower backflow section. By means of cascade connection with a high-performance liquid separator, environmental protection, high efficiency, and multi-level enrichment of the lithium-7 isotope are achieved, and a high-abundance lithium-7 isotope product is obtained.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: May 8, 2018
    Assignee: Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
    Inventors: Jinbo Hu, Wei Zhang, Weiqin Zheng, Guanghua Chen, Xiao Shi, Yongchang Xu, Honggui Lv, Chengye Yuan
  • BACKFLOW CASCADE NOVEL PROCESS FOR PRODUCING LITHIUM-7 ISOTOPE
    Publication number: 20160215363
    Abstract: Provided is a backflow cascade novel process for producing a lithium-7 isotope. The process comprises an upper backflow section, an extraction section, an enrichment section, a lower backflow section, and a product acquiring section. Upper backflow phase-conversion liquid and lower backflow phase-conversion liquid are respectively added to the upper backflow section and the lower backflow section, and upper backflow phase-conversion liquid and lower backflow phase-conversion liquid of the lithium material are controlled; the product is precisely acquired in the product acquiring section; an organic phase is added to the upper backflow section, and is recycled in the lower backflow section. By means of cascade connection with a high-performance liquid separator, environmental protection, high efficiency, and multi-level enrichment of the lithium-7 isotope are achieved, and a high-abundance lithium-7 isotope product is obtained.
    Type: Application
    Filed: March 28, 2014
    Publication date: July 28, 2016
    Applicant: Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
    Inventors: Jinbo Hu, Wei Zhang, Weiqin Zheng, Guanghua Chen, Xiao Shi, Yongchang Xu, Honggui Lv, Chengye Yuan
  • COMPOUNDS, SCREENS, AND METHODS OF TREATMENT
    Publication number: 20140024662
    Abstract: The present invention features compounds of Formula (I), pharmaceutical compositions, methods of synthesis, and methods for treating diseases and conditions associate with cellular necrosis. Screening assays for identifying compounds useful for treating these conditions are also described.
    Type: Application
    Filed: September 25, 2013
    Publication date: January 23, 2014
    Applicants: Shanghai Institute of Organic Chemistry, President and Fellows of Harvard College
    Inventors: Junying YUAN, Chengye Yuan, Alexei Degterev
  • COMPOUNDS, SCREENS, AND METHODS OF TREATMENT
    Publication number: 20100087453
    Abstract: The present invention features compounds of Formula (I), pharmaceutical compositions, methods of synthesis, and methods for treating diseases and conditions associated with cellular necrosis. Screening assays for identifying compounds useful for treating these conditions are also described.
    Type: Application
    Filed: October 9, 2007
    Publication date: April 8, 2010
    Applicants: President and Fellows of Harvard College, Shanghai Institute of Organic Chemistry
    Inventors: Junying Yuan, Chengye Yuan, Alexei Degterev
  • Extraction of rare earth elements using alkyl phosphinic acid or salt/alkyl or aryl phosphonic acid or ester blends as extractant
    Patent number: 5639433
    Abstract: A method is disclosed whereby rare earth elements are extracted from acidic solutions thereof using, as an extractant, a mixture of an alkyl (C.sub.4 -C.sub.12) phosphinic acid or salt and an alkyl (C.sub.4 -C.sub.12) or aryl phosphonic acid or ester thereof.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: June 17, 1997
    Assignee: Cytec Technology Corp.
    Inventors: Chengye Yuan, Hengli Ma
  • Extraction of rare earth elements using alkyl phosphinic acid or salt/tetraalkylammonium salt as extractant
    Patent number: 5622679
    Abstract: A method whereby rare earth elements are extracted from acidic solutions thereof using, as an extractant, a mixture of an alkyl (C.sub.4 -C.sub.12) phosphinic acid or salt and a tetraalkylammonium salt wherein the total number of carbon atoms in the four alkyl groups ranges from 14 to 56.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: April 22, 1997
    Assignee: Cytec Technology Corp.
    Inventors: Chengye Yuan, Hengli Ma