Patents by Inventor Changliang Dai

Changliang Dai 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).

  • HS-25 tablet and preparation method therefor
    Patent number: 11622939
    Abstract: An HS-25 tablet, an HS-25 solid dispersion composition, a preparation method therefor and usage thereof. The HS-25 tablet is made by using HS-25 and excipients for wet granulation, drying, granulating and tablet pressing.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: April 11, 2023
    Assignee: ZHEJIANG HISUN PHARMACEUTICAL CO., LTD.
    Inventors: Li Ding, Jun Dai, Chunrong Feng, Changliang Dai
  • HS-25 TABLET AND PREPARATION METHOD THEREFOR
    Publication number: 20210145754
    Abstract: An HS-25 tablet, an HS-25 solid dispersion composition, a preparation method therefor and usage thereof. The HS-25 tablet is made by using HS-25 and excipients for wet granulation, drying, granulating and tablet pressing.
    Type: Application
    Filed: November 23, 2018
    Publication date: May 20, 2021
    Applicant: ZHEJIANG HISUN PHARMACEUTICAL CO., LTD.
    Inventors: Li DING, Jun DAI, Chunrong FENG, Changliang DAI
  • Ginsenoside C-K polymorphic compounds and method for preparing same
    Patent number: 9670245
    Abstract: Provided are several types of ginsenoside polymorphic substances and a method for preparing same. In particular, new crystal form A, crystal form B, crystal form C, crystal form E, crystal form F, crystal form I, crystal form K, crystal form L, crystal form M, crystal form N, and crystal form O are involved.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: June 6, 2017
    Assignee: Zhejiang Hisun Pharmaceutical Co., Ltd.
    Inventors: Guobin Ren, Changliang Dai, Jinyao Chen, Feng Chen, Minghui Qi, Wenming Zhu, Minghuang Hong, Hua Bai
  • Two crystal forms of ginsenoside C-K and method for preparing same
    Patent number: 9643992
    Abstract: Provided are ginsenoside C-K polymorphic forms and a method for preparing same. The ginsenoside C-K polymorphic forms are crystal form D and crystal form H.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: May 9, 2017
    Assignee: Zhejiang Hisun Pharmaceutical Co., Ltd.
    Inventors: Guobin Ren, Changliang Dai, Jinyao Chen, Feng Chen, Minghui Qi, Wenming Zhu, Minghuang Hong, Hua Bai
  • GINSENOSIDE C-K POLYMORPHIC COMPOUNDS AND METHOD FOR PREPARING SAME
    Publication number: 20150065699
    Abstract: Provided are several types of ginsenoside polymorphic substances and a method for preparing same. In particular, new crystal form A, crystal form B, crystal form C, crystal form E, crystal form F, crystal form I, crystal form K, crystal form L, crystal form M, crystal form N, and crystal form O are involved.
    Type: Application
    Filed: April 1, 2013
    Publication date: March 5, 2015
    Applicant: Zhejiang Hisun Pharmaceutical Co., Ltd.
    Inventors: Guobin Ren, Changliang Dai, Jinyao Chen, Feng Chen, Minghui Qi, Wenming Zhu, Minghuang Hong, Hua Bai
  • TWO CRYSTAL FORMS OF GINSENOSIDE C-K AND METHOD FOR PREPARING SAME
    Publication number: 20150057440
    Abstract: Provided are ginsenoside C-K polymorphic forms and a method for preparing same. The ginsenoside C-K polymorphic forms are crystal form D and crystal form H.
    Type: Application
    Filed: April 1, 2013
    Publication date: February 26, 2015
    Applicant: Zhejiang Hisun Pharmaceutical Co., Ltd.
    Inventors: Guobin Ren, Changliang Dai, Jinyao Chen, Feng Chen, Minghui Qi, Wenming Zhu, Minghuang Hong, Hua Bai