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SINOPEC OILFIELD SERVICE CORP

Overview
  • Total Patents
    1,188
  • GoodIP Patent Rank
    1,310
  • Filing trend
    ⇧ 15.0%
About

SINOPEC OILFIELD SERVICE CORP has a total of 1,188 patent applications. It increased the IP activity by 15.0%. Its first patent ever was published in 2014. It filed its patents most often in China, Netherlands and United States. Its main competitors in its focus markets civil engineering, basic materials chemistry and measurement are HALIBURTON ENERGY SERVICES INC, CHANGQING DOWNHOLE TECHNOLOGY OPERATION CO OF CNPC CHUANQING DRILLING ENG CO LTD and CNPC BOHAI DRILLING ENG CO LTD.

Patent filings in countries

World map showing SINOPEC OILFIELD SERVICE CORPs patent filings in countries

Patent filings per year

Chart showing SINOPEC OILFIELD SERVICE CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liu Zhendong 71
#2 Wang Zhonghua 68
#3 Li Gongrang 66
#4 Zhang Jinghui 48
#5 Lyu Yuebin 43
#6 Zhou Shouju 34
#7 Xiao Hongbing 32
#8 Yang Haibo 32
#9 Pei Xueliang 31
#10 Si Xiqiang 30

Latest patents

Publication Filing date Title
CN112169411A Coiled tubing fluid filter equipment
CN112228007A Cleaner for female drill pipe buckles
CN112227974A Top drive protective joint with suspension type filter screen
CN112269208A Seismic attribute connection mapping method across three-dimensional seismic work area
CN112185240A Indicating plate and oil drilling platform
CN112231816A Digital delivery method based on process pipeline
CN112174466A Oil refining sludge reduction comprehensive treatment method
CN112250791A Retarder with water loss reducing function and preparation method thereof
CN112253848A Sand geology water network swamp area pipeline construction method
CN112145116A Oil and gas well packing device and using method thereof
CN112253847A Pipeline construction method for sand geological water network area
CN112283323A Small-size underground high-power transmission mechanism
CN112062101A Energy-saving continuous sulfur melting device and process thereof
CN112196513A Longmaxi group shale gas well productivity prediction method based on horizontal well trajectory evaluation
CN112144873A Circular track bolt pre-embedding method
CN112253084A Underground double-probe magnetic measurement device and method
CN112253095A Underground alternating magnetic field positioning device and method
CN112001095A Method for establishing well cementation quality evaluation index and well cementation quality evaluation method
CN112111262A Guanidine gum fracturing fluid system and application thereof in low-temperature oil and gas reservoir
CN112160742A Simulation device and method for establishing well cementation quality evaluation index