Patents by Inventor Changwen Li

Changwen Li 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: 20240122133
    Abstract: Disclosed are a low-cost high-efficiency drip irrigation system for a cotton field and a use method thereof. The drip irrigation system for a cotton field includes a filtering device and a water supply device; wherein the filtering device adopts different types of single filtering devices or combined filtering devices according to different water source types; the water supply device includes multiple stages of main pipes, submain pipes and laterals; the laterals (a drip irrigation tape with labyrinth on one side or a drip irrigation tape inlaid with emitters inside) are laid on the surface of the ground and located below a mulch film. The drip irrigation system adopts the design of large flow (1.5-3.4 L/h), slightly larger pipe diameter (>75 mm), low water pressure (operating pressure of drip irrigation tape being 0.03-0.07 MPa) and suitable drip irrigation uniformity (80%-90%).
    Type: Application
    Filed: December 9, 2023
    Publication date: April 18, 2024
    Applicants: Institute of Cash Crops, Xinjiang Academy of Agricultural Sciences, Shihezi University
    Inventors: Liwen TIAN, Honghai Luo, Hezhong Dong, Na Zhang, Liantao Liu, Guangping Feng, Zhanbiao Wang, Yanjun Zhang, Xianzhe Hao, Jin Li, Zhi Chen, Nan Zhao, Changwen Liu
  • Publication number: 20240129557
    Abstract: Provided in the present disclosure are a live streaming method and apparatus, and a computer device and a storage medium. The method comprises: in response to a live streaming request that is initiated in a first sub-program interface displayed in a target application program, performing push-stream live streaming on the first sub-program interface on the basis of a live streaming process; receiving interaction data sent by a server, sending the interaction data to a sub-program process that has a connection relationship with the live streaming process, and displaying the interaction data on the first sub-program interface; and in response to a sub-program switching operation, receiving the interaction data by means of a second sub-program process which is switched to, and displaying the interaction data on a second sub-program interface.
    Type: Application
    Filed: April 8, 2022
    Publication date: April 18, 2024
    Inventors: Junming HUANG, Gehang LI, Changwen CHEN, Shaoze XIE
  • Publication number: 20230372854
    Abstract: A conformable, unframed pleated air filter, comprising a plurality of bridging filaments on at least one face of the pleated air filter.
    Type: Application
    Filed: August 1, 2023
    Publication date: November 23, 2023
    Inventors: Changwen Li, Andrew R. Fox, Bryan L. Gerhardt
  • Patent number: 11708368
    Abstract: The present invention provides a crystalline form of a benzodiazepine derivative hydrochloride of Formula I or its ethanolate, wherein R is methyl or ethyl. The present invention also provides a method of preparing the crystal form of the compound of Formula I and a pharmaceutical composition comprising the crystal form.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: July 25, 2023
    Assignee: JIANGSU NHWALUOKANG PHARMACEUTICAL RESEARCH AND DEVELOPMENT CO., LTD.
    Inventors: Qingeng Li, Chen Duan, Tao Wang, Jian Liao, Changwen Li, Chao Hao
  • Publication number: 20210002283
    Abstract: The present invention provides a crystalline form of a benzodiazepine derivative hydrochloride of Formula I or its ethanolate, wherein R is methyl or ethyl. The present invention also provides a method of preparing the crystal form of the compound of Formula I and a pharmaceutical composition comprising the crystal form.
    Type: Application
    Filed: February 13, 2019
    Publication date: January 7, 2021
    Inventors: Qingeng Li, Chen Duan, Tao Wang, Jian Liao, Changwen LI, Chao Hao
  • Patent number: 10376491
    Abstract: Disclosed are a pharmaceutical composition for treating non-alcoholic fatty liver and a method for preparing same. The composition is prepared from the following hulk drugs by weight ratio: 8.75-60 parts of silibinin, 15-65 parts of phospholipid, 25-200 parts of Pu'er tea extract, and 5-50 parts of radix puerariae extract.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: August 13, 2019
    Assignee: Tasly Pharmaceutical Group Co., Ltd.
    Inventors: Xijun Yan, Naifeng Wu, He Sun, Kaijing Yan, Yonghong Zhu, Xiaohui Ma, Shunnan Zhang, Changwen Li, Xiaolin Bai, Ting Li, Lei Li, Yi He
  • Publication number: 20180104216
    Abstract: Disclosed are a pharmaceutical composition for treating non-alcoholic fatty liver and a method for preparing same. The composition is prepared from the following hulk drugs by weight ratio: 8.75-60 parts of silibinin, 15-65 parts of phospholipid, 25-200 parts of Pu'er tea extract, and 5-50 parts of radix puerariae extract.
    Type: Application
    Filed: March 22, 2016
    Publication date: April 19, 2018
    Inventors: Xijun YAN, Naifeng WU, He SUN, Kaijing YAN, Yonghong ZHU, Xiaohui MA, Shunnan ZHANG, Changwen LI, Xiaolin BAI, Ting LI, Lei LI, Yi HE
  • Publication number: 20180021716
    Abstract: A conformable, unframed, non-self-supporting pleated air filter, comprising: a conformable, unframed, non-self-supporting, pleated air filter media with an upstream face and a downstream face, wherein the conformable, unframed, non-self-supporting, pleated air filter media comprises a plurality of oppositely-facing pleats with a pleat direction and with a plurality of upstream pleat tips and upstream pleat valleys and downstream pleat tips and downstream pleat valleys, the pleated air filter media further comprising a plurality of bridging filaments on the downstream face of the pleated air filter media.
    Type: Application
    Filed: January 29, 2015
    Publication date: January 25, 2018
    Applicant: 3M Innovative Properties Company
    Inventors: Changwen Li, Andrew R. Fox, Bryan L. Gerhardt
  • Publication number: 20170241193
    Abstract: The present disclosure generally relates to adjustably sized air filter systems capable of use in a window opening. The present disclosure also related to methods of making and using these adjustably sized air filter systems.
    Type: Application
    Filed: August 24, 2015
    Publication date: August 24, 2017
    Inventors: Andrew R. Fox, Nicolas A. Echeverri, Jonathan M. Lise, Changwen Li, Liang Cheng, Kannan Seshadri
  • Publication number: 20170028338
    Abstract: Some embodiments of the present disclosure relate to improving or overcoming at least one problem in existing air filters by including at least one folding structure in or on the air filter. The folding structure is capable of being bent to enable the air filter to be wrapped around or secured to a, for example, washing net. The folding structure can also hold the air filter securely to the, for example, washing net.
    Type: Application
    Filed: January 22, 2015
    Publication date: February 2, 2017
    Inventors: Liming Xin, Andrew R. Fox, Liang Cheng, Changwen Li, Rui Chen
  • Publication number: 20060123499
    Abstract: The present invention is directed towards the use of the masked palm civet Paguma larvata (“civet”) as an animal model system for SARS, and is based on the novel demonstration of the present invention that civets may be infected with exogenous coronavirus, and that such infection produces SARS-like symptoms in these infected animals. The present invention is directed to a civet model system for the study of the infection, replication, and clinical effects of exogenously introduced human SARS-CoV coronavirus strains, civet SARS-CoV-like coronavirus strains, or variants or derivatives thereof, and to the development of vaccines (or other methods of prevention) or treatment of infection or transmission to other civets or humans of these human SARS-CoV coronavirus strains, civet SARS-CoV-like coronavirus strains, or variants or derivatives thereof.
    Type: Application
    Filed: December 6, 2004
    Publication date: June 8, 2006
    Inventors: Donglai Wu, Xiangang Kong, Qingwen Meng, Yonggang Liu, Yuntao Guan, Xunnan Yin, Mouping Wang, Changwen Li, Ming Liao, Chao-an Xin, Jinding Chen, Changchun Tu, Hua Xuan, Yedong Yu