Patents by Inventor Yong-Yan Xu

Yong-Yan Xu 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: 11958789
    Abstract: A method for determining a consistency coefficient of a power-law cement grout includes: determining a water-cement ratio of the power-law cement grout; according to engineering practice requirements, determining a time required to determine the consistency coefficient of the power-law cement grout; and obtaining the consistency coefficient of the power-law cement grout. The method is accurate and reliable, requires less calculation, etc.; and has very high practical value and popularization value in environmental protection and ecological restoration.
    Type: Grant
    Filed: December 12, 2023
    Date of Patent: April 16, 2024
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Zhi-quan Yang, Jun-fan Xiong, Ying-yan Zhu, Yi Yang, Yong-shun Han, Muhammad Asif Khan, Jian-bin Xie, Tian-bing Xiang, Bi-hua Zhang, Han-hua Xu, Jie Zhang, Shen-zhang Liu, Qi-jun Jia, Cheng-yin Ye, Gang Li
  • Patent number: 9284382
    Abstract: Disclosed is an apparatus for continuously processing a lignocellulosic material, and particularly to an apparatus for continuously processing a lignocellulosic material by using of a single-stage or two-stage pretreatment processing with related to the acid-catalyzed steam explosion processing combined with dilute acid hydrolysis and steam explosion, in which parameters are adjusted to maintain in a state where lignocellulosic material feeding, acid mixing pre-heating, dilute acid hydrolysis reaction, steam explosion and flash discharge, to solid and liquid separation are simultaneously and continuously operated, so as to achieve in the results of acquiring xylose hydrolyzate by hydrolyzing hemicellulose, destroying lignocellulosic material structure, increasing surface area and porosity.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: March 15, 2016
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, Executive Yuan, R.O.C.
    Inventors: Wen-Hua Chen, Pei-Yuan Tsai, Ching-Jui Lo, Chien-Hsien Huang, Sheng-Shieh Chen, Yong-Yan Xu
  • Patent number: 9073065
    Abstract: A cyclone device for separating a sticky material from a gas stream, comprising a tin body; an introducing tube, connected to the tin body and arranged on a facet of the tin body; a central exhaust pipe, arranged within the tin body on a top position thereof, a conical tin connected to a bottom of the tin body at one end and having a particle discharging exit at the other end; a supporting wheel set, arranged within the tin body and adjacent to an end of the conical tin; and a scraping mechanism arranged movably on the supporting wheel set.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: July 7, 2015
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL
    Inventors: Wen-Hua Chen, Yong-Yan Xu, Ron-Hsine Chang