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DAQING PETROLEUM ADMIN

Overview
  • Total Patents
    158
About

DAQING PETROLEUM ADMIN has a total of 158 patent applications. Its first patent ever was published in 1998. It filed its patents most often in China. Its main competitors in its focus markets environmental technology, materials and metallurgy and basic materials chemistry are NITTETSU CEMENT KK, SUMITOMO KINZOKU KOZAN SIPOREX and KENZAI TECHNO KENKYUSHO KK.

Patent filings in countries

World map showing DAQING PETROLEUM ADMINs patent filings in countries
# Country Total Patents
#1 China 158

Patent filings per year

Chart showing DAQING PETROLEUM ADMINs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhiguang Yang 8
#2 Yang Zhiguang 7
#3 Song Ruihong 6
#4 Liu Yonggui 6
#5 Zhenxing Yu 6
#6 Gao Xiang 5
#7 Meng Xiangguang 5
#8 Zhao Zhixue 5
#9 Hongying Fu 5
#10 Han Yuan 5

Latest patents

Publication Filing date Title
CN102809702A Detection device for rectifier and driver modules of MWD (measurement while drilling) downhole instrument
CN102808615A Electronic circuit testing equipment for formation pressure tester while drilling
CN102808612A Wake-up method of formation pressure testing while drilling
CN102808581A Guide device for downing casing pipe into herringbone well
CN102808611A Comprehensive testing device of drilling stratum pressure tester
CN102182432A Secondary explosion energy-releasing liner
CN102229797A Temperature resistant (200 DEG C) fluid loss additive
CN102220114A 200-DEG C resistant cement paste for well cementation
CN102249502A Integrated device for impurity removal pulping and charging of oil sludge
CN102191024A Curable leak-stopping agent
CN102191025A Broad-spectrum deformable while-drilling leak-proof sealing agent
CN102179261A Catalyst for preparing crylic acid from propane through selective oxidation and preparation method thereof
CN102091780A Composition of powder metallurgical perforating charge shell material, professional die and manufacturing method of the powder metallurgical perforating charge shell material
CN102093863A Ultra-fine cement slurry for blocking
CN102079972A Saturated saltwater mud
CN102086386A Anti-sedimentation agent for cement capable of resisting 200 DEG C of oil well and preparation method thereof
CN102040987A 230 DEG C resistance retarder for oil-well cement and preparation method thereof
CN102032157A Ground driving device of screw pump
CN102010695A Organosilicon polysulfonate drilling fluid
CN102454374A Digital display drilling fluid densitometer