Patents by Inventor SHIMING GAO

SHIMING GAO 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 pretreating and using copper-based catalyst
    Patent number: 9725403
    Abstract: Method for pretreating the copper-based catalyst having the steps of dehydrating the copper-based catalyst at an elevated temperature, reducing the dehydrated copper-based catalyst with hydrogen, and passivating the activated copper-based catalyst to obtain a catalyst suitable for N-alkylation. The dehydration and reduction steps may be conducted simultaneously.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: August 8, 2017
    Assignee: Jiangsu Sinorgchem Technology Co., Ltd.
    Inventor: Shiming Gao
  • METHOD FOR PRETREATING AND USING COPPER-BASED CATALYST
    Publication number: 20150175523
    Abstract: Method for pretreating the copper-based catalyst having the steps of dehydrating the copper-based catalyst at an elevated temperature, reducing the dehydrated copper-based catalyst with hydrogen, and passivating the activated copper-based catalyst to obtain a catalyst suitable for N-alkylation. The dehydration and reduction steps may be conducted simultaneously.
    Type: Application
    Filed: March 5, 2015
    Publication date: June 25, 2015
    Inventor: Shiming GAO
  • Method for pretreating and using copper-based catalyst
    Patent number: 9006489
    Abstract: Method for pretreating the copper-based catalyst having the steps of dehydrating the copper-based catalyst at an elevated temperature, reducing the dehydrated copper-based catalyst with hydrogen, and passivating the activated copper-based catalyst to obtain a catalyst suitable for N-alkylation. The dehydration and reduction steps may be conducted simultaneously.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: April 14, 2015
    Assignee: Jiangsu Sinorgchem Technology Co., Ltd.
    Inventor: Shiming Gao
  • METHOD FOR PRETREATING AND USING COPPER-BASED CATALYST
    Publication number: 20120316363
    Abstract: Method for pretreating the copper-based catalyst having the steps of dehydrating the copper-based catalyst at an elevated temperature, reducing the dehydrated copper-based catalyst with hydrogen, and passivating the activated copper-based catalyst to obtain a catalyst suitable for N-alkylation. The dehydration and reduction steps may be conducted simultaneously.
    Type: Application
    Filed: June 15, 2011
    Publication date: December 13, 2012
    Applicant: Jiangsu Sinorgchem Technology Co., Ltd.
    Inventor: SHIMING GAO