Patents by Inventor Maojian Gu

Maojian Gu 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: 10647669
    Abstract: Disclosed in the present invention are a composition containing lutein/lutein ester and applications thereof. Components of the composition containing lutein/lutein ester comprise lutein/lutein ester, ?-carotene and a pharmaceutically acceptable carrier. The weight ratio of lutein/lutein ester to ?-carotene is 1:0.1-100. In the present invention, by cooperatively using lutein/lutein ester and ?-carotene and using auxiliary natural healthy ingredients, the dosage form of an orally disintegrating tablet is prepared. The orally disintegrating tablet is absorbed through the oral cavity, has fast effectiveness and small first-pass effect, reduces damage of gastric acid to lutein/lutein ester, has high bioavailability, and has the characteristics of nutritional and health-care effects, good mouthfeel and fast absorption.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: May 12, 2020
    Assignee: SinoNutraceutical Co., Ltd.
    Inventors: Maojian Gu, Jianmei Su
  • Patent number: 10391103
    Abstract: Disclosed are a ferroporphyrin solid dispersion, preparation method therefor and a pharmaceutical composition comprising the solid dispersion, wherein the weight ratio of ferroporphyrin to the carrier material in the dispersion is 1:1-1:10. The solid dispersion of the present invention masks the undesirable taste of ferroporphyrin, ameliorates irritation thereof to the digestive tract, and at the same time increases the solubility thereof and improves the bioavailability thereof.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: August 27, 2019
    Assignee: SINOTHERAPEUTICS INC.
    Inventors: Larry Yun Fang, Jiansheng Wan, Kun Li, Maojian Gu
  • Publication number: 20190161441
    Abstract: Disclosed in the present invention are a composition containing lutein/lutein ester and applications thereof. Components of the composition containing lutein/lutein ester comprise lutein/lutein ester, ?-carotene and a pharmaceutically acceptable carrier. The weight ratio of lutein/lutein ester to ?-carotene is 1:0.1-100. In the present invention, by cooperatively using lutein/lutein ester and ?-carotene and using auxiliary natural healthy ingredients, the dosage form of an orally disintegrating tablet is prepared. The orally disintegrating tablet is absorbed through the oral cavity, has fast effectiveness and small first-pass effect, reduces damage of gastric acid to lutein/lutein ester, has high bioavailability, and has the characteristics of nutritional and health-care effects, good mouthfeel and fast absorption.
    Type: Application
    Filed: June 14, 2017
    Publication date: May 30, 2019
    Applicant: SinoNutraceutical Co., Ltd.
    Inventors: Maojian GU, Jianmei SU
  • Patent number: 9555003
    Abstract: Provided is an oral solid preparation of a compound anti-tubercular drug, wherein the active ingredients are rifampicin, isoniazid, pyrazinamide and ethambutol hydrochloride. The compound oral solid preparation is a coated tablet with coated core or a coated three-layer tablet, wherein the two active ingredients rifampicin and isoniazid do not come to contact with each other directly. The compound oral solid preparation not only improves the stability of the compound preparation, but also improves the bioavailability of rifampicin.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: January 31, 2017
    Assignee: Zhejiang Hisun Pharmaceutical Co., Ltd.
    Inventors: Maojian Gu, Qilan Zheng, Chao Xu, Ning Li, Guixian Chen, Lan Zheng, Min Wang, Lintao Jiang
  • Publication number: 20160243130
    Abstract: Disclosed are a ferroporphyrin solid dispersion, preparation method therefor and a pharmaceutical composition comprising the solid dispersion, wherein the weight ratio of ferroporphyrin to the carrier material in the dispersion is 1:1-1:10. The solid dispersion of the present invention masks the undesirable taste of ferroporphyrin, ameliorates irritation thereof to the digestive tract, and at the same time increases the solubility thereof and improves the bioavailability thereof.
    Type: Application
    Filed: November 17, 2014
    Publication date: August 25, 2016
    Inventors: Larry Yun Fang, Jiansheng Wan, Kun Li, Maojian Gu
  • Publication number: 20150190523
    Abstract: A pharmaceutical composition comprising a phosphatidylcholine-based opioid receptor antagonist formulation, as well as methods of their use and methods of their preparation are provided herein. Such pharmaceutical composition may be used for treating and preventing opioid-induced side effects in patients, and may be provided to chronic opioid users as well.
    Type: Application
    Filed: March 13, 2013
    Publication date: July 9, 2015
    Inventors: Chun-Su Yuan, Chong-Zhi Wang, Maojian Gu, Dong-Hai Lin
  • Publication number: 20140127294
    Abstract: Provided is an oral solid preparation of a compound anti-tubercular drug, wherein the active ingredients are rifampicin, isoniazid, pyrazinamide and ethambutol hydrochloride. The compound oral solid preparation is a coated tablet with coated core or a coated three-layer tablet, wherein the two active ingredients rifampicin and isoniazid do not contact directly. The compound oral solid preparation not only improves the stability of the compound preparation, but also improves the bioavailability of rifampicin.
    Type: Application
    Filed: April 10, 2012
    Publication date: May 8, 2014
    Applicant: ZHEJIANG HISUN PHARMACEUTICAL CO., LTD.
    Inventors: Maojian Gu, Qilan Zheng, Chao Xu, Ning Li, Guixian Chen, Lan Zheng, Min Wang, Lintao Jiang
  • Patent number: 8623855
    Abstract: Preparation of azetidinone compounds and medical use thereof are provided by the present invention. More particularly, azetidionne compounds, shown as formula (I), wherein R1, R2, R3, R4, R5 and R6 are defined in description, and preparation methods thereof are provided by the present invention. The compounds of the present invention can reduce the levels of total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C) in plasma, and can be used as medicaments for reducing cholesterol in blood. Therefore the compounds of the present invention can be used to treat or prevent diseases of atherosclerosis, cacergasia of blood vessel, cardiac failure, coronary artery disease, angiocardiopathy, myocardial, angina, hyperlipoidemia and hypercholesteremia and the like. Preparation method of compounds of formula (I) and intermediate compounds are also provided by the present invention.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: January 7, 2014
    Assignee: Zhejiang Hisun Pharmaceutical Co., Ltd.
    Inventors: Hua Bai, Xuyang Zhao, Xiaojie Xu, Xiaoyu Liu, Yuncai Zhang, Ying Chen, Xiaohe Zheng, Maojian Gu, Qifeng Zhu, Yong Zhang, Hairong Luo
  • Publication number: 20120208994
    Abstract: Preparation of azetidinone compounds and medical use thereof are provided by the present invention. More particularly, azetidionne compounds, shown as formula (I), wherein R1, R2, R3, R4, R5 and R6 are defined in description, and preparation methods thereof are provided by the present invention. The compounds of the present invention can reduce the levels of total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C) in plasma, and can be used as medicaments for reducing cholesterol in blood. Therefore the compounds of the present invention can be used to treat or prevent diseases of atherosclerosis, cacergasia of blood vessel, cardiac failure, coronary artery disease, angiocardiopathy, myocardial, angina, hyperlipoidemia and hypercholesteremia and the like. Preparation method of compounds of formula (I) and intermediate compounds are also provided by the present invention.
    Type: Application
    Filed: August 9, 2010
    Publication date: August 16, 2012
    Applicant: ZHEJIANG HISUN PHARMACEUTICAL CO., LTD.
    Inventors: Hua Bai, Xuyang Zhao, Xiaojie Xu, Xiaoyu Liu, Yuncai Zhang, Ying Chen, Xiaohe Zheng, Maojian Gu, Qifeng Zhu, Yong Zhang, Hairong Luo