Patents by Inventor Rongguo Qiu

Rongguo Qiu 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).

  • Publication number: 20240108579
    Abstract: Provided is a utidelone liposome composition. The liposome composition mainly contains utidelone, a phospholipid, and optional cholesterol. The liposome composition does not contain an excipient that is prone to causing an allergic reaction of a human body, has a high drug loading capacity and stability, and has a good industrialization potential. Further provided are a method for preparing the utidelone liposome composition and the use thereof.
    Type: Application
    Filed: July 1, 2022
    Publication date: April 4, 2024
    Applicant: Chengdu Biostar Pharmaceuticals, LTD.
    Inventors: Li Tang, Chuan Zhang, Jing Xu, Cheng Zhang, Rongguo Qiu
  • Publication number: 20230340550
    Abstract: Recombinant Sorangium cellulosum for producing de-epoxidized epothilone B by fermentation, insertional inactivation of an epoK gene in an epothilone biosynthetic gene cluster in the recombinant bacteria, and a method for producing de-epoxidized epothilone B using the recombinant bacteria.
    Type: Application
    Filed: July 24, 2021
    Publication date: October 26, 2023
    Applicants: Beijing Biostar Pharmaceuticals Co., Ltd., Chengdu Biostar Pharmaceuticals, LTD.
    Inventors: Li Tang, Rongguo Qiu
  • Publication number: 20230048901
    Abstract: An oral pharmaceutical formulation using 4, 8-dihydroxy-5, 5, 7, 9, 13-pentamethyl-16-[1-methyl-2-(2-methyl-thiazole-4-yl)-ethenyl]]-oxacyclohexadec-13-ene-2,6-dione (utidelone) as an active ingredient, suitable for oral administration. The pharmaceutical formulation is a solid formulation such as tablets and capsules, and the pharmaceutical dosage form has good stability, in vitro dissolution behavior, and bioavailability.
    Type: Application
    Filed: September 2, 2021
    Publication date: February 16, 2023
    Applicants: Beijing Biostar Pharmaceuticals Co., Ltd., Chengdu Biostar Pharmaceuticals, LTD.
    Inventors: Li Tang, Chuan Zhang, Rongguo Qiu
  • Publication number: 20230041956
    Abstract: A polycrystal form of Utidelone, particularly relating to a semi-hydrated crystal form (A) of Utidelone, a preparation method therefor and a use of crystal Utidelone in preparation of a pharmaceutical composition, especially the use in preparation of a pharmaceutical composition for inhibiting tumor growth and treating solid tumors of mammals, especially human. The provided crystal form is stable and resistant to high temperature and high humidity, and the preparation method is diversified and simple, and is suitable for industrialized production of new medicines.
    Type: Application
    Filed: April 8, 2021
    Publication date: February 9, 2023
    Applicants: Beijing Biostar Pharmaceuticals Co., Ltd., Chengdu Biostar Pharmaceuticals, LTD.
    Inventors: Li TANG, Rixiang KONG, Rongguo QIU
  • Patent number: 10980782
    Abstract: The present application discloses a pharmaceutical preparation comprising a de-epoxidized epothilone derivative, and especially relates to a preparation formulation of a compound with reduced allergens and toxicity; and also relates to the use thereof in the treatment of tumours, especially the use thereof in the treatment of solid tumours that are resistant to and fail to respond to other conventional chemotherapeutic agents, as well as the use thereof in the treatment of cancers alone or in combination with other tumour drugs or auxiliary drugs.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: April 20, 2021
    Assignees: BEIJING BIOSTAR TECHNOLOGIES, LTD., CHENGDU BIOSTAR PHARMACEUTICALS, LTD.
    Inventors: Li Tang, Rongguo Qiu
  • Publication number: 20190070152
    Abstract: The present application discloses a pharmaceutical preparation comprising a de-epoxidized epothilone derivative, and especially relates to a preparation formulation of a compound with reduced allergens and toxicity; and also relates to the use thereof in the treatment of tumours, especially the use thereof in the treatment of solid tumours that are resistant to and fail to respond to other conventional chemotherapeutic agents, as well as the use thereof in the treatment of cancers alone or in combination with other tumour drugs or auxiliary drugs.
    Type: Application
    Filed: February 6, 2017
    Publication date: March 7, 2019
    Applicants: Beijing Biostar Technologies Ltd., Chengdu Biostar Pharmaceuticals, Ltd.
    Inventors: Li Tang, Rongguo Qiu
  • Patent number: 8895590
    Abstract: Epothilone compounds represented by formula (I), their preparation methods and their use for preparing medicines are disclosed. The epothilone compounds are prepared by bioconversion and chemosynthesis or chemical modifications using epothilones or their derivatives as starting materials. Said epothilone compounds can be used to treat proliferative diseases.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: November 25, 2014
    Inventors: Li Tang, Rongguo Qiu
  • Patent number: 8623912
    Abstract: Novel Fostriecin (or FST) derivatives represented by formula (I), the pharmaceutical compositions and preparation methods thereof. The pharmaceutical uses of these compounds, especially the use for the preparation of pharmaceutical compositions for treating tumor, inhibiting cell over growth, or lowering myocardial infarction and the injury to cells.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: January 7, 2014
    Assignees: Beijing Biostar Technologies, Ltd., Dalian University of Technology
    Inventors: Li Tang, Rongguo Qiu
  • Publication number: 20120322838
    Abstract: Epothilone compounds represented by formula (I), their preparation methods and their use for preparing medicines are disclosed. The epothilone compounds are prepared by bioconversion and chemosynthesis or chemical modifications using epothilones or their derivatives as starting materials. Said epothilone compounds can be sued to treat proliferative diseases.
    Type: Application
    Filed: June 18, 2012
    Publication date: December 20, 2012
    Inventors: Li Tang, Rongguo Qiu
  • Publication number: 20120065171
    Abstract: Novel Fostriecin (or FST) derivatives represented by formula (I), the pharmaceutical compositions and preparation methods thereof. The pharmaceutical uses of these compounds, especially the use for the preparation of pharmaceutical compositions for treating tumor, inhibiting cell over growth, or lowering myocardial infarction and the injury to cells.
    Type: Application
    Filed: October 1, 2010
    Publication date: March 15, 2012
    Applicants: Dalian University of Technology, BayGen Pharm Technology Co., Ltd.
    Inventors: Li Tang, Rongguo Qiu
  • Publication number: 20110112149
    Abstract: The present invention relates to novel 15-membered thiazole lactone or lactam polyketide compounds, their pharmaceutical compositions, their use and their preparations. The disclosed compounds relate to those of general formula I, their preparations and their use for preparing therapeutical compositions used as cell inhibitors.
    Type: Application
    Filed: March 2, 2009
    Publication date: May 12, 2011
    Inventors: Li Tang, Rongguo Qiu