Patents by Inventor Pengxin Qiu

Pengxin 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).

  • Patent number: 10835539
    Abstract: Use of 5?-androstane-3?,5,6?-triol and analogs thereof in the preparation of a drug for the prophylaxis or treatment of an altitude sickness caused by hypobaric hypoxia is provided, so as to provide a new drug for the prophylaxis or treatment of an altitude sickness. Researches revealed that 5?-androstane-3?,5,6?-triol treatment can effectively reduce vasogenic edema of brain tissue of Macaca fascicularis caused by hypobaric hypoxia, reduce the increased cerebral water content, and protect from neuronal vacuolar degeneration caused by hypobaric hypoxia, therefore it can improve neurological dysfunctions caused by hypobaric hypoxia and is useful in prophylaxis or treatment of an altitude sickness.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: November 17, 2020
    Assignee: Guangzhou Cellprotek Pharmaceutical Co., Ltd.
    Inventors: Wei Yin, Jiesi Chen, Guangmei Yan, Bingzheng Lu, Wenbo Zhu, Haiyan Hu, Pengxin Qiu, Yijun Huang, Jingxia Zhang
  • Publication number: 20190262358
    Abstract: Use of 5?-androstane-3?,5,6?-triol and analogs thereof in the preparation of a drug for the prophylaxis or treatment of an altitude sickness caused by hypobaric hypoxia is provided, so as to provide a new drug for the prophylaxis or treatment of an altitude sickness. Researches revealed that 5?-androstane-3?,5,6?-triol treatment can effectively reduce vasogenic edema of brain tissue of Macaca fascicularis caused by hypobaric hypoxia, reduce the increased cerebral water content, and protect from neuronal vacuolar degeneration caused by hypobaric hypoxia, therefore it can improve neurological dysfunctions caused by hypobaric hypoxia and is useful in prophylaxis or treatment of an altitude sickness.
    Type: Application
    Filed: March 25, 2019
    Publication date: August 29, 2019
    Inventors: Wei Yin, Jiesi Chen, Guangmei Yan, Bingzheng Lu, Wenbo Zhu, Haiyan Hu, Pengxin Qiu, Yijun Huang, Jingxia Zhang
  • Patent number: 10357500
    Abstract: Use of 5?-androstane-3?,5,6?-triol and analogs thereof in the preparation of a drug for the prophylaxis or treatment of an altitude sickness caused by hypobaric hypoxia is provided, so as to provide a new drug for the prophylaxis or treatment of an altitude sickness. Researches revealed that 5?-androstane-3?,5,6?-triol treatment can effectively reduce vasogenic edema of brain tissue of Macaca fascicularis caused by hypobaric hypoxia, reduce the increased cerebral water content, and protect from neuronal vacuolar degeneration caused by hypobaric hypoxia, therefore it can improve neurological dysfunctions caused by hypobaric hypoxia and is useful in prophylaxis or treatment of an altitude sickness.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: July 23, 2019
    Assignee: Guangzhou Cellprotek Pharmaceutical Co., Ltd.
    Inventors: Wei Yin, Jiesi Chen, Guangmei Yan, Bingzheng Lu, Wenbo Zhu, Haiyan Hu, Pengxin Qiu, Yijun Huang, Jingxia Zhang
  • Publication number: 20170042909
    Abstract: Use of 5?-androstane-3?,5,6?-triol and analogs thereof in the preparation of a drug for the prophylaxis or treatment of an altitude sickness caused by hypobaric hypoxia is provided, so as to provide a new drug for the prophylaxis or treatment of an altitude sickness. Researches revealed that 5?-androstane-3?,5,6?-triol treatment can effectively reduce vasogenic edema of brain tissue of Macaca fascicularis caused by hypobaric hypoxia, reduce the increased cerebral water content, and protect from neuronal vacuolar degeneration caused by hypobaric hypoxia, therefore it can improve neurological dysfunctions caused by hypobaric hypoxia and is useful in prophylaxis or treatment of an altitude sickness.
    Type: Application
    Filed: April 14, 2015
    Publication date: February 16, 2017
    Inventors: Wei Yin, Jiesi Chen, Guangmei Yan, Bingzheng Lu, Wenbo Zhu, Haiyan Hu, Pengxin Qiu, Yijun Huang, Jingxia Zhang
  • Patent number: 9320743
    Abstract: Disclosed is the use of 5?-androstane-3?,5,6?-triol in preparing neuroprotective drugs. The compound has significant protective effect against neuron injuries caused by cerebral ischemia, spinal cord ischemia or hypoxia and has no obvious toxic reaction within effective dose thereof.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: April 26, 2016
    Assignee: GUANGZHOU CELLPROTEK PHARMACEUTICAL LTD.
    Inventors: Guangmei Yan, Haiyan Hu, Tiandong Leng, Hanfei Sang, Jingxia Zhang, Pengxin Qiu, Shujia Zhou, Jiesi Chen, Xiuhua You
  • Publication number: 20160051685
    Abstract: A 5?-androstane-3?,5,6?-triol injection and its preparation are disclosed. The injection uses hydroxypropyl-?-cyclodextrin as a solubilizing agent and the active ingredient is present at a weight ratio of 1-20:40-500 to the hydroxypropyl-?-cyclodextrin. The injection may also comprise, by weight, 1-100 parts of at least one isotonic adjusting agent, 0-200 parts of at least one freeze drying filler, and 0-2000 parts of at least one solvent. The preparation method comprises dissolving hydroxypropyl-?-cyclodextrin solution, 5?-androstane-3?,5,6?-triol and at least one additional soluble excipient in water for injection in sequence to obtain a raw injection solution, and subjecting the raw injection solution to decolorization, depyrogenation, filtration and sterilization to obtain the injection. Drying the filtrate yields a solid for injection.
    Type: Application
    Filed: August 28, 2015
    Publication date: February 25, 2016
    Applicant: Guangzhou Cellprotek Pharmaceutical LTD.
    Inventors: Guangmei Yan, Haiyan HU, Jingxia ZHANG, Pengxin QIU, Ling LI, Ning TIAN
  • Patent number: 9265837
    Abstract: A 5?-androstane-3?,5,6?-triol injection and its preparation are disclosed. The injection uses hydroxypropyl-?-cyclodextrin as a solubilizing agent and the active ingredient is present at a weight ratio of 1-20:40-500 to the hydroxypropyl-?-cyclodextrin. The injection may also comprise, by weight, 1-100 parts of at least one isotonic adjusting agent, 0-200 parts of at least one freeze drying filler, and 0-2000 parts of at least one solvent. The preparation method comprises dissolving hydroxypropyl-?-cyclodextrin solution, 5?-androstane-3?,5,6?-triol and at least one additional soluble excipient in water for injection in sequence to obtain a raw injection solution, and subjecting the raw injection solution to decolorization, depyrogenation, filtration and sterilization to obtain the injection. Drying the filtrate yields a solid for injection.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: February 23, 2016
    Assignee: Guangzhou Cellprotek Pharmaceuticals Ltd.
    Inventors: Guangmei Yan, Haiyan Hu, Jingxia Zhang, Pengxin Qiu, Ling Li, Ning Tian
  • Patent number: 9161985
    Abstract: A 5?-androstane-3?,5,6?-triol injection and its preparation are disclosed. The injection uses hydroxypropyl-?-cyclodextrin as a solubilizing agent and the active ingredient is present at a weight ratio of 1-20:40-500 to the hydroxypropyl-?-cyclodextrin. The injection may also comprise, by weight, 1-100 parts of at least one isotonic adjusting agent, 0-200 parts of at least one freeze drying filler, and 0-2000 parts of at least one solvent. The preparation method comprises dissolving hydroxypropyl-?-cyclodextrin solution, 5?-androstane-3?,5,6?-triol and at least one additional soluble excipient in water for injection in sequence to obtain a raw injection solution, and subjecting the raw injection solution to decolorization, depyrogenation, filtration and sterilization to obtain the injection, Drying the filtrate yields a solid for injection.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: October 20, 2015
    Assignee: Guangzhou Cellprotek Pharmaceutical Ltd.
    Inventors: Guangmei Yan, Halyan Hu, Jingxia Zhang, Pengxin Qiu, Ling Li, Ning Tian
  • Publication number: 20140329790
    Abstract: Disclosed is the use of 5?-androstane-3?,5,6?-triol in preparing neuroprotective drugs. The compound has significant protective effect against neuron injuries caused by cerebral ischemia, spinal cord ischemia or hypoxia and has no obvious toxic reaction within effective dose thereof.
    Type: Application
    Filed: July 15, 2014
    Publication date: November 6, 2014
    Applicant: GUANGZHOU CELLPROTEK PHARMACEUTICAL LTD.
    Inventors: Guangmei YAN, Haiyan HU, Tiandong LENG, Hanfei SANG, Jingxia ZHANG, Pengxin QIU, Shujia ZHOU, Jiesi CHEN, Xiuhua YOU
  • Patent number: 8809309
    Abstract: Disclosed is the use of 5?-androstane(alkyl)-3?,5,6?-triol in preparing neuroprotective drugs. The compound has significant protective effect against neuron injuries caused by cerebral ischemia, spinal cord ischemia or hypoxia and has no obvious toxic reaction within effective dose thereof.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: August 19, 2014
    Assignee: Guangzhou Cellprotek Pharmaceutical Ltd.
    Inventors: Guangmei Yan, Haiyan Hu, Tiandong Leng, Hanfei Sang, Jingxia Zhang, Pengxin Qiu, Shujia Zhou, Jiesi Chen, Xiuhua You
  • Publication number: 20130172307
    Abstract: A 5?-androstane-3?,5,6?-triol injection and its preparation are disclosed. The injection uses hydroxypropyl-?-cyclodextrin as a solubilizing agent and the active ingredient is present at a weight ratio of 1-20:40-500 to the hydroxypropyl-?-cyclodextrin. The injection may also comprise, by weight, 1-100 parts of at least one isotonic adjusting agent, 0-200 parts of at least one freeze drying filler, and 0-2000 parts of at least one solvent. The preparation method comprises dissolving hydroxypropyl-?-cyclodextrin solution, 5?-androstane-3?,5,6?-triol and at least one additional soluble excipient in water for injection in sequence to obtain a raw injection solution, and subjecting the raw injection solution to decolorization, depyrogenation, filtration and sterilization to obtain the injection, Drying the filtrate yields a solid for injection.
    Type: Application
    Filed: July 8, 2011
    Publication date: July 4, 2013
    Inventors: Guangmei Yan, Halyan Hu, Jingxia Zhang, Pengxin Qiu, Ling Li, Ning Tian
  • Publication number: 20130157993
    Abstract: Disclosed is the use of 5?-androstane(alkyl)-3?,5,6?-triol in preparing neuroprotective drugs. The compound has significant protective effect against neuron injuries caused by cerebral ischemia, spinal cord isehemia or hypoxia and has no obvious toxic reaction within effective dose thereof.
    Type: Application
    Filed: July 8, 2011
    Publication date: June 20, 2013
    Inventors: Guangmei Yan, Haiyan Hu, Tiandong Leng, Hanfei Sang, Jingxia Zhang, Pengxin Qiu, Shujia Zhou, Jiesi Chen, Xiuhua You
  • Publication number: 20100152150
    Abstract: The application of marine steroid, i.e. 24-methylene-cholest-3?,5?,6?,19-tetrol, in preparing the medicine of treating neurons damaging is provided in the present invention. The keto-sterols compounds marine steroid YC-1 extracted from Nephthea albida has the action of neuronal protection, and no toxic reaction under the effective protective dosage.
    Type: Application
    Filed: August 31, 2006
    Publication date: June 17, 2010
    Inventors: Guangmei Yan, Pengxin Qiu, Yijun Huang, Wei Yin, Xingwen Su, Ailing Liu, Hanfel Sang, Xiang Cai
  • Publication number: 20080312170
    Abstract: The present invention relates to a fibrinolysin gene of Agkistrodon acutus, a vector containing the said gene and the host cell which transformed by the vector. The fibrinolysin could be used in treating diseases caused by thrombus. The fibrinolysin FII is purified from the crude venom of Agkistrodon acutus, and the corresponding gene is cloned. It is recommended to produce the fibrionolysin by the yeast expression system. The activity of the fibrionlysin is also determined. The advantages of this invention are that the expression level and activity of the fibrinolysin are both high and the quality of the fibrinolysin is stable.
    Type: Application
    Filed: December 15, 2004
    Publication date: December 18, 2008
    Inventors: Guangmei Yan, Jiashu Chen, Pengxin Qiu, Hong Shan