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YANCHENG RONGJIA MACHINERY MFG CO LTD

Overview
  • Total Patents
    14
  • GoodIP Patent Rank
    124,030
  • Filing trend
    ⇧ 100.0%
About

YANCHENG RONGJIA MACHINERY MFG CO LTD has a total of 14 patent applications. It increased the IP activity by 100.0%. Its first patent ever was published in 2017. It filed its patents most often in China. Its main competitors in its focus markets civil engineering are OILPHASE SAMPLING SERVICES LTD, NAZAROV VIKTOR and GETTE NICHOLAS PETER.

Patent filings in countries

World map showing YANCHENG RONGJIA MACHINERY MFG CO LTDs patent filings in countries
# Country Total Patents
#1 China 14

Patent filings per year

Chart showing YANCHENG RONGJIA MACHINERY MFG CO LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Focus technologies

# Technology
#1 Earth drilling

Top inventors

# Name Total Patents
#1 Zhu Jiadao 14
#2 Wang Guohua 10
#3 Liu Shujun 6
#4 Bian Changrong 1

Latest patents

Publication Filing date Title
CN112253035A Well drilling blowout prevention structure and device thereof
CN111894466A Roller bit for petroleum exploration and exploitation
CN111894465A Screw drill bit structure for oil development
CN111894481A Anti-falling structure of screw drill
CN111894467A Natural gas is opened and is adopted screw drill
CN111894483A High-strength screw drill
CN109779554A A kind of screw rod power device for Sand pump
CN109750990A A kind of ultra-fine helicoid hydraulic motor
CN108678660A Underground oil reservoir pries into gaging hole bolt special drilling tool
CN108590575A A kind of wellhead safety anti-theft plug valve
CN108716380A The safe top opening of drilling tool check valve
CN108661549A A kind of heat-insulated good air screw rod drill tool
CN107178309A A kind of multi-stage diffluence foam screw drill
CN107255016A One kind can adjust hollow shunting screw drill