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TOP-WELL PETROLEUM TECH COMPANY LTD

Overview
  • Total Patents
    11
  • GoodIP Patent Rank
    152,881
  • Filing trend
    ⇩ 100.0%
About

TOP-WELL PETROLEUM TECH COMPANY LTD has a total of 11 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2016. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, engines, pumps and turbines and environmental technology are HUMASON GRANVILLE A, ROSS BASSINGER and HANSEN DOWNHOLE PUMP SOLUTIONS AS.

Patent filings in countries

World map showing TOP-WELL PETROLEUM TECH COMPANY LTDs patent filings in countries
# Country Total Patents
#1 China 11

Patent filings per year

Chart showing TOP-WELL PETROLEUM TECH COMPANY LTDs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Zhang Dianxin 3
#2 Meng Zhaoxian 3
#3 Tian Youren 2
#4 Zhang Yanping 1
#5 Qi Quanlong 1
#6 Lan Weijia 1

Latest patents

Publication Filing date Title
CN106988701A A kind of hydraulic vibration fishing device
CN107035332A A kind of tubing string internal cutter
CN107035340A A kind of high-strength degradable ball seat
CN106995262A A kind of greasy filth device for thinning
CN107035333A A kind of down-hole string inner cutter
CN107035336A A kind of automatic control blanking plug
CN107091069A A kind of gaslift piston
CN105909218A Underground controllable spray gun
CN105909213A Underground slide sleeve opening device
CN105909503A Downhole hollow oil well pump
CN105909502A Oil well pump and oil production pipe column