Patents by Inventor Wen Hui Hu

Wen Hui Hu 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: 20240157448
    Abstract: A metal 3D printing device comprises a building platform, a first powder spreading arm, a second powder spreading arm, a gas stream unit and a scanning module. The building platform is for supporting the powder. The first and second powder spreading arms are spaced and configured for spreading powder. The gas stream unites comprises a gas blowing port and a gas suction port, the gas blowing port is provided in the first powder spreading arm, and the gas suction port is provided in the second powder spreading arm. The scanning module is for emitting a laser to the powder preplaced between the first and second powder spreading arms to solidify the powder to form the product.
    Type: Application
    Filed: July 2, 2021
    Publication date: May 16, 2024
    Inventors: JIAN-YE LIU, WEN-HUA GAO, KA-LI XU, LIU-HUI NIU, GAO-FENG HU
  • Patent number: 7112605
    Abstract: The invention relates to sulfonyl-containing 3,4-diaryl-3-pyrrolin-2-ones compounds having formula (I) wherein R1 is selected from the group consisting of 4-methylsulfonyl, 4-aminosulfonyl, hydrogen, 2-, 3-, or 4-halogen, C1–C6-alkyl, cyclopentyl, cyclohexyl, C1–C4-alkoxy, hydroxy, cyano, nitro, amino or trifluoromethyl; R2 is selected from the group consisting of 4-methylsulfonyl, 4-aminosulfonyl, hydrogen, 2-, 3-, or 4-halogen, C1–C6-alkyl, cyclopentyl, cyclohexyl, C1–C4-alkoxy, hydroxy, cyano, nitro, amino or trifluoromethyl; and R3 is selected from the group consisting of hydrogen, methyl, ethyl, n-propyl, i-propyl, c-propyl, n-butyl, isobutyl; provided that when R1 is a methylsulfonyl or aminosulfonyl group, R2 is any group as defined above except a methylsulfonyl or aminosulfonyl group; and when R2 is a methylsulfonyl or aminosulfonyl group, R1 is any group as defined above except a methylsulfonyl or aminosulfonyl group, also to processes for the preparation of such compounds, to pharmaceutical co
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: September 26, 2006
    Assignees: Research Institute of Materia Medica Chinese Acadamy of Medical Sciences, Jiangsu Hengrui Medicine Company Ltd.
    Inventors: Zongru Guo, Guifang Cheng, Fengming Chu, Ai Ping Bai, Wen Hui Hu, Fang Shen, Guangzhong Yang, Boling Xu
  • Patent number: 6960611
    Abstract: The present invention relates to sulfonyl-containing 2,3-diarylindole, especially to new compounds of general Formula, to a preparation method for their preparation, to pharmaceutical compositions containing said compound, and to the medical use thereof in the treatment of diseases relating to the inhibition of cyclooxygenase-2 (COX-2).
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: November 1, 2005
    Assignee: Institute of Materia Medica
    Inventors: Zongru Guo, Guifang Cheng, Fengming Chu, Wen Hui Hu, Zhi Bin Xu, Ai Ping Bai