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BEIJING ZEHUA CHEMICAL ENG CO LTD

Overview
  • Total Patents
    13
  • GoodIP Patent Rank
    149,168
  • Filing trend
    ⇧ 150.0%
About

BEIJING ZEHUA CHEMICAL ENG CO LTD has a total of 13 patent applications. It increased the IP activity by 150.0%. Its first patent ever was published in 2013. It filed its patents most often in China, United States and EPO (European Patent Office). Its main competitors in its focus markets chemical engineering, organic fine chemistry and environmental technology are FEDOROV VLADIMIR, BEIJING ZEHUA CHEMICAL ENGINEERING CO LTD and JIANGSU HONGLIU CHEMICAL MACHINERY CO LTD.

Patent filings in countries

World map showing BEIJING ZEHUA CHEMICAL ENG CO LTDs patent filings in countries
# Country Total Patents
#1 China 7
#2 United States 5
#3 EPO (European Patent Office) 1

Patent filings per year

Chart showing BEIJING ZEHUA CHEMICAL ENG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tang Hongping 13
#2 Xie Runxing 10
#3 Wang Changzhi 6
#4 Liu Tieyong 5
#5 Lv Jiazhuo 5
#6 Guo Hongchao 4
#7 Han Qinghua 1
#8 Ye Xu 1
#9 Duan Zhoupeng 1
#10 Ma Qibing 1

Latest patents

Publication Filing date Title
CN111349064A Process for rectifying and separating crude phthalic anhydride mixture by using dividing wall tower
CN109908632A Settle tower tray and tower inner assembly
CN109663561A For the Vierendeel girder and tower inner assembly in tower
CN108949218A For separating the next door column rectification system and method for catalytic reforming de-pentane oil
CN108434774A It is a kind of to detach C6 to the device of C9+ BTX aromatics using next door tower
CN107497393A A kind of more trimming curved surface ring random packings
CN107551586A A kind of device using next door tower combination multi-effect distillation production methanol