Patents by Inventor Hailin Qin

Hailin Qin 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).

  • Hydrophilic berberine-type derivative and application thereof in preparing drug
    Patent number: 11725006
    Abstract: An 8-dihalomethyl berberine-type quaternary ammonium salt compound represented by general formula (I) or (II) and an application thereof in preparing a drug. The compound shows hydrophilicity and has antimicrobial, anti-inflammatory, anti-ulcerative colitis, and antitumor activities, while having no or low toxicity.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: August 15, 2023
    Assignee: INSTITUTE OF MATERIA MEDIC, CHINESE ACADEMY OF MEDICAL SCIENCES
    Inventors: Hailin Qin, Lianqiu Wu, Xiang Li, Haijing Zhang, Li Song, Huachen Song, Anjun Deng, Xiaonan Tang, Zhihui Zhang, Xiang Li, Zhihong Li
  • IMAGE FRAME ERROR CONCEALMENT METHOD AND APPARATUS
    Publication number: 20220239955
    Abstract: The present disclosure discloses an image frame error concealment method including the following steps: determining whether an nth image frame has a packet loss error, and if so, not performing error concealment on the nth image frame; and performing error concealment on an (n+1)th image frame, wherein the error concealment operation is performed with reference to one or more image frames before the nth image frame, wherein n is an integer greater than or equal to 2.
    Type: Application
    Filed: December 9, 2019
    Publication date: July 28, 2022
    Inventor: Hailin QIN
  • HYDROPHILIC BERBERINE-TYPE DERIVATIVE AND APPLICATION THEREOF IN PREPARING DRUG
    Publication number: 20210147409
    Abstract: An 8-dihalomethyl berberine-type quaternary ammonium salt compound represented by general formula (I) or (II) and an application thereof in preparing a drug. The compound shows hydrophilicity and has antimicrobial, anti-inflammatory, anti-ulcerative colitis, and antitumor activities, while having no or low toxicity.
    Type: Application
    Filed: April 15, 2019
    Publication date: May 20, 2021
    Inventors: Hailin QIN, Lianqiu WU, Xiang LI, Haijing ZHANG, Li SONG, Huachen SONG, Anjun DENG, Xiaonan TANG, Zhihui ZHANG, Xiang LI, Zhihong LI
  • Derivatives of protoberberine biological alkaloids and use of same inhibiting ulcerative colitis
    Patent number: 9266897
    Abstract: Disclosed are derivatives of protoberberine biological alkaloids or physiologically acceptable salts thereof produced by means of a derivative reaction of a source material of biological alkaline quaternary ammonium salts of protoberberine alkaloids, a preparation method for same and pharmaceutical uses thereof. The derivatives of protoberberine biological alkaloids or the physiologically acceptable salts thereof show activity inhibiting ulcerative colitis and can be used in the preparation of drugs for same.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: February 23, 2016
    Assignee: Institute of Materia Medica, Chinese Academy of Medical Sciences
    Inventors: Hailin Qin, Wenjie Wang, Zhihui Zhang, Lianqiu Wu, Anjun Deng, Jinqian Yu, Zhihong Li
  • Derivatives Of Protoberberine Biological Alkaloids And Use Of Same Inhibiting Ulcerative Colitis
    Publication number: 20150031717
    Abstract: Disclosed are derivatives of protoberberine biological alkaloids or physiologically acceptable salts thereof produced by means of a derivative reaction of a source material of biological alkaline quaternary ammonium salts of protoberberine alkaloids, a preparation method for same and pharmaceutical uses thereof. The derivatives of protoberberine biological alkaloids or the physiologically acceptable salts thereof show activity inhibiting ulcerative colitis and can be used in the preparation of drugs for same.
    Type: Application
    Filed: October 24, 2012
    Publication date: January 29, 2015
    Applicant: Institute of Materia Medica, Chinese Academy of Medical Sciences
    Inventors: Hailin Qin, Wenjie Wang, Zhihui Zhang, Lianqiu Wu, Anjun Deng, Jinqian Yu, Zhihong Li