Patents by Inventor Youqun Wang

Youqun Wang 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).

  • REVERSIBLE THERMOSENSITIVE EARLY-WARNING ENVIRONMENT-FRIENDLY FLAME-RETARDANT PROTECTIVE SLEEVE
    Publication number: 20230198236
    Abstract: A reversible thermosensitive early-warning environment-friendly flame-retardant protective sleeve is provided, which includes an outer protective sleeve. A cushioning mounting block is mounted on one side of the outer protective sleeve. A flame-retardant layer is provided on a surface of the cushioning mounting block. A first splicing block and a second splicing block are mounted on an inner wall of the outer protective sleeve. Expansion blocks are mounted on surfaces of both the first splicing block and the second splicing block. A sharp block is mounted at a bottom of each of the expansion blocks. A flame-retardant device is provided at a bottom of the sharp block.
    Type: Application
    Filed: November 2, 2021
    Publication date: June 22, 2023
    Inventors: Wenzhong DAI, Nikolai Konkodievich ZAITSEV, Wenzong XU, Youqun WANG, Mian DAI, Zhang DAI, Yujuan WU, Chao DAI, Liang LI
  • Tetrahydroprotoberberine quaternary ammonium compounds useful in for treating arrhythmia
    Patent number: 5470852
    Abstract: A tetrahydroprotoberberine quaternary ammonium compound represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R' and X are as defined in the specification. A method of preparing the compound is provided. The compounds can suppress arrhythmia and ventricular fibrillation, protect against myocardial ischemia, and can be conveniently orally administered.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: November 28, 1995
    Assignees: China Pharmaceutical University, Administrative Center of New Drug Research, The State Pharmaceutical Administration of China
    Inventors: Sixun Peng, Dezai Dai, Zhenya Huang, Wenlong Huang, Youqun Wang, Can Zhang, Feng Yu