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ZHONGMAN PETROLEUM AND NATURAL GAS GROUP CO LTD

Overview
  • Total Patents
    19
  • GoodIP Patent Rank
    90,534
  • Filing trend
    ⇩ 40.0%
About

ZHONGMAN PETROLEUM AND NATURAL GAS GROUP CO LTD has a total of 19 patent applications. It decreased the IP activity by 40.0%. Its first patent ever was published in 2009. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, basic materials chemistry and measurement are ABAD CARLOS, PANGA MOHAN K R and KRASNOD GNI PI NEFTYANOJ PROMY.

Patent filings in countries

World map showing ZHONGMAN PETROLEUM AND NATURAL GAS GROUP CO LTDs patent filings in countries
# Country Total Patents
#1 China 19

Patent filings per year

Chart showing ZHONGMAN PETROLEUM AND NATURAL GAS GROUP CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yu Junquan 4
#2 Zhong Shan 4
#3 Ding Yu 4
#4 Tang Huilan 4
#5 Wang Changrong 4
#6 Li Hongwei 3
#7 Liu Xingang 2
#8 Qi Qiangguo 2
#9 Hao Shanbo 2
#10 Gu Xinbo 2

Latest patents

Publication Filing date Title
CN112209678A Drilling fluid rapid dehydration pressure-bearing plugging agent, preparation method thereof and pressure-bearing plugging slurry
CN111561278A Automatic catwalk for winding steel wire rope to pull small trolley to push drilling tool
CN110819314A Novel drilling fluid nano plugging agent, preparation method thereof and water-based drilling fluid containing plugging agent
CN110500049A A kind of land rig column pipe racking device
CN110067530A A kind of pure electric setting tool
CN110005350A A kind of oil-well rig dynamic drilling rod box and its drilling tool stowage
CN110001799A Drilling machine carrying device and drilling machine and drilling machine method for carrying convenient for integrally carrying
CN109763785A A kind of hydraulic anchoring device and its application method in heavy load salvage tool
CN109441409A A kind of perforation publishes switch with multi-stage ignition electronics
CN109538173A A kind of inflow control device with grease automatic shunt function
CN108952589A A kind of tower-type headframe jack up unit and lifting method
CN108893099A A kind of drilling well Anti-leakage type unfreezing acid resistant to high temperatures and preparation method thereof
CN108088502A The device and its measuring method of measurement accuracy are improved in a kind of ground During Oil Testing Process
CN107562005A A kind of oil-well rig cat track control unit and its control method
CN107032249A A kind of electronics anti-collision guard method of oil-well rig tourist bus lifting device and system
CN106869827A A kind of self-travel type dynamic catwalk and its traveling method
CN106869826A A kind of new petroleum drill machine dynamic catwalk and its drilling tool stowage
CN106753310A A kind of composite fracturing liquid system
CN101618842A One-hand controller for petroleum drilling machine winch