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XI AN PETROLEUM COLLEGE

Overview
  • Total Patents
    21
About

XI AN PETROLEUM COLLEGE has a total of 21 patent applications. Its first patent ever was published in 1987. It filed its patents most often in China. Its main competitors in its focus markets machine tools are KOGO MASH IM AKAD V P GLUSHKO, EITEITSUKU TEKUTORON KK and CYC ARC LTD.

Patent filings in countries

World map showing XI AN PETROLEUM COLLEGEs patent filings in countries
# Country Total Patents
#1 China 21

Patent filings per year

Chart showing XI AN PETROLEUM COLLEGEs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Machine tools

Focus technologies

Top inventors

# Name Total Patents
#1 Chao Zhang 3
#2 Tianyou Jing 2
#3 Xiuhan Jiang 2
#4 Xu Jiaye 2
#5 Wang Manxue 2
#6 Chen Maotao 2
#7 Fu Xiaoning 1
#8 Xiaoling Wang 1
#9 Ping Li 1
#10 Guo Xiaoli 1

Latest patents

Publication Filing date Title
CN1349980A Non-ionic diphenyl hydrophobic monomer and its prepn
CN1305047A Ultrasonic water draining method for recovering gas
CN1266195A Method for raising seisphone measurement accuracy
CN1258709A Oil-base aluminium phosphate gelatinizer for fracture liquid and its preparation
CN1201911A Method and apparatus for certification of testing instrument for geophone
CN1174229A Phosphate oil-base pressure cracked liquid gelatinizer and its preparation
CN1149505A Method for improving dehydrating effect of emulsion breaker
CN1143650A Process for preparing quaternary type cationic hydroxyethyl starch
CN1118403A Non-focus electric current lateral well logging instrument
CN1114413A Torque measurer
CN1109586A Continously automatic measuring method of oil/water split-phase micro flow
CN1096100A A kind of remote apparatus for measuring rheologic property of liquid
CN1087967A Slurry parameter auto-testing device in use for oil and/or gas field well drilling and cementing
CN1076647A A kind of copper-stainless-steel thin-wall pipe friction welding apparatus and method
CN1072497A Mud cake thickness measuring apparatus
CN1070027A Impact drill drilling tool duty method of discrimination and Operating Guideline device
CN1036527A Brazing flux for composite chips of hard alloy and diamond
CN1034157A Processing method for polymorphic diamond compound blade before welding
CN1037094A Efficient thick oil emulsion-breaking agent
CN1033199A Molten zinc surface coverture