Learn more

CNPC CHUANQING DRILLING ENG CO

Overview
  • Total Patents
    708
  • GoodIP Patent Rank
    3,109
  • Filing trend
    ⇧ 25.0%
About

CNPC CHUANQING DRILLING ENG CO has a total of 708 patent applications. It increased the IP activity by 25.0%. Its first patent ever was published in 2006. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, basic materials chemistry and measurement are CNPC GROUP WESTERN DRILLING ENG CO LTD, AUSTRALIAN MUD COMPANY PTY LTD and CHINA UNITED COALBED METHANE CO LTD.

Patent filings in countries

World map showing CNPC CHUANQING DRILLING ENG COs patent filings in countries
# Country Total Patents
#1 China 708

Patent filings per year

Chart showing CNPC CHUANQING DRILLING ENG COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Pan Deng 43
#2 Deng Hu 40
#3 Yin Congbin 39
#4 Han Liexiang 36
#5 Zhao Lei 32
#6 Yang Bo 30
#7 Fan Liming 28
#8 Luo Li 27
#9 He Qiuyun 26
#10 Tang Jiaqiong 26

Latest patents

Publication Filing date Title
CN111927438A Monitoring device and monitoring method for liquid level of anti-overflow pipe while drilling
CN111222277A Vibration evaluation method for inlet and outlet pipelines of booster pump of gas transmission station
CN111141615A External pressure crushing device
CN111335825A Connecting head
CN111331542A Screw tightening device
CN111335835A Well testing stop fork
CN110984949A Shale continuous sand-adding fracturing process
CN111075421A Fracturing process for improving effective support of complex fracture network in shale fracturing
CN111021946A Well drilling speed-increasing process for changing bottom hole confining pressure distribution by middle energy accumulation
CN111058761A Manufacturing method of double-speed double-center drilling speed-increasing equipment
CN110905395A Well drilling speed-increasing system capable of changing bottom hole confining pressure distribution by middle energy gathering
CN110939392A Double-speed double-core drilling speed-increasing equipment
CN110984845A Well drilling speed increasing method for changing bottom hole confining pressure distribution by middle energy accumulation
CN111042777A Perforating method of underground casing system and underground casing system
CN111077281A In-service fracturing high-pressure manifold detection method and system
CN111021979A Releasable underground fishing tool for oil and gas well
CN111042809A Underground stratum complex fracture state and sand blocking simulation device and method
CN110932362A Fracturing truck power storage and supply system and fracturing truck
CN110905448A Infinite grading full-bore fracturing sliding sleeve assembly system
CN110984912A Fracturing construction process utilizing infinite grading full-bore fracturing sliding sleeve assembly system