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Yancheng huayi petroleum machinery co ltd

Overview
  • Total Patents
    24
  • GoodIP Patent Rank
    98,058
  • Filing trend
    ⇩ 90.0%
About

Yancheng huayi petroleum machinery co ltd has a total of 24 patent applications. It decreased the IP activity by 90.0%. Its first patent ever was published in 2012. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, chemical engineering and packaging and shipping are AUSTRALIAN MUD COMPANY LTD, SKIPPER UVON and HEAL SYSTEMS LP.

Patent filings in countries

World map showing Yancheng huayi petroleum machinery co ltds patent filings in countries
# Country Total Patents
#1 China 24

Patent filings per year

Chart showing Yancheng huayi petroleum machinery co ltds patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Bian Dingwang 24
#2 Zha Cuihong 14
#3 Qu Weiguo 9
#4 Yue Jixiang 6
#5 Chai Cuihong 3
#6 Chai Hao 3
#7 Zhu Jin 3
#8 Bian Yaquan 2
#9 Wang Hongwei 1
#10 Zhang Jianhua 1

Latest patents

Publication Filing date Title
CN110355717A A kind of hydraulic pin extraction device of pumping unit horsehead
CN107120105A A kind of downhole rotational-flow desander
CN107130934A A kind of spiral core bit
CN107143306A A kind of novel drill rod float valve
CN107349645A A kind of desander
CN107176555A A kind of well drilling hoist of rope arranging automatically
CN107120074A A kind of oil pick-up tube friction prevention device
CN107120082A A kind of pressure-resistant anti-clogging side-suction type sand-settling device
CN107246248A A kind of spiral-flow type sand-settling device
CN107130935A A kind of oil pump vortex type high-efficient sand-settling device
CN107120095A A kind of high vacuum insulated tubing
CN108104748A Backwash cycles valve
CN106609776A Solution-preparing jet device
CN106567673A Hydraulic motor assembly with automatic drilling tool abrasion compensation function
CN105888552A Hydraulic vibration type screw drill
CN105332660A Scraping and centralizing stabilizer
CN104763375A High-strength low-torque plug valve
CN104747074A Pressure drilling device of drilling machine
CN104727758A Nano-metal centralizer
CN104653120A Rotating anti-eccentric wear sucker rod coupling