Patents by Inventor Benliang Hou

Benliang Hou 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 purifying 1,5-pentanediamine and the 1,5-pentanediamine prepared thereby
    Patent number: 11008279
    Abstract: Provided is a method for purifying 1,5-pentanediamine comprising: providing 1,5-pentanediamine to be purified and treating the 1,5-pentanediamine to be purified by a reduction reaction to obtain purified 1,5-pentanediamine. Meanwhile, further provided is 1,5-pentanediamine prepared by the method. The purification method has a concise process and a simple operation, and is suitable for industrial production, and can significantly improve the quality of 1,5-pentanediamine.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: May 18, 2021
    Assignees: CATHAY BIOTECH INC., CIBT AMERICA INC.
    Inventors: Bingbing Qin, Charlie Liu, Shanshi Guo, Benliang Hou, Xiucai Liu
  • METHOD FOR PURIFYING 1,5-PENTANEDIAMINE AND THE 1,5-PENTANEDIAMINE PREPARED THEREBY
    Publication number: 20200109104
    Abstract: Provided is a method for purifying 1,5-pentanediamine comprising: providing 1,5-pentanediamine to be purified and treating the 1,5-pentanediamine to be purified by a reduction reaction to obtain purified 1,5-pentanediamine. Meanwhile, further provided is 1,5-pentanediamine prepared by the method. The purification method has a concise process and a simple operation, and is suitable for industrial production, and can significantly improve the quality of 1,5-pentanediamine.
    Type: Application
    Filed: December 5, 2019
    Publication date: April 9, 2020
    Applicants: CIBTAmerica Inc., Cathay Biotech Inc.
    Inventors: Bingbing Qin, Charlie Liu, Shanshi Guo, Benliang Hou, Xiucai Liu
  • Method for purifying 1,5-pentanediamine and 1,5-pentanediamine
    Patent number: 10538481
    Abstract: Provided is a method for purifying 1,5-pentanediamine comprising: providing 1,5-pentanediamine to be purified and treating the 1,5-pentanediamine to be purified by a reduction reaction to obtain purified 1,5-pentanediamine. Meanwhile, further provided is 1,5-pentanediamine prepared by the method. The purification method has a concise process and a simple operation, and is suitable for industrial production, and can significantly improve the quality of 1,5-pentanediamine.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: January 21, 2020
    Assignees: Cathay Biotech Inc., CIBT America Inc.
    Inventors: Bingbing Qin, Charlie Liu, Shanshi Guo, Benliang Hou, Xiucai Liu
  • METHOD FOR PURIFYING 1,5-PENTANEDIAMINE AND 1,5-PENTANEDIAMINE
    Publication number: 20180002272
    Abstract: Provided is a method for purifying 1,5-pentanediamine comprising: providing 1,5-pentanediamine to be purified and treating the 1,5-pentanediamine to be purified by a reduction reaction to obtain purified 1,5-pentanediamine. Meanwhile, further provided is 1,5-pentanediamine prepared by the method. The purification method has a concise process and a simple operation, and is suitable for industrial production, and can significantly improve the quality of 1,5-pentanediamine.
    Type: Application
    Filed: December 17, 2014
    Publication date: January 4, 2018
    Applicants: Cathay R&D Center Co., Ltd., Cathay Industrial Biotech Ltd.
    Inventors: Bingbing Qin, Charlie Liu, Shanshi Guo, Benliang Hou, Xiucai Liu