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XI AN TONGYUAN PETROTECH CO LTD

Overview
  • Total Patents
    12
  • GoodIP Patent Rank
    228,283
About

XI AN TONGYUAN PETROTECH CO LTD has a total of 12 patent applications. Its first patent ever was published in 2009. It filed its patents most often in China. Its main competitors in its focus markets machines and civil engineering are GOYENECHE SERGIO F, HUNTING TITAN INC and TONG OIL TOOLS CO LTD.

Patent filings in countries

World map showing XI AN TONGYUAN PETROTECH CO LTDs patent filings in countries
# Country Total Patents
#1 China 12

Patent filings per year

Chart showing XI AN TONGYUAN PETROTECH CO LTDs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Zhang Guoan 11
#2 Cheng Jianlong 6
#3 Zhao Jun 3
#4 Li Gangqiang 3
#5 Sun Xianhong 3
#6 Jianlong Cheng 1
#7 Nan Yingfei 1
#8 Jingxin Shen 1
#9 Huo Ruilong 1
#10 Guoan Zhang 1

Latest patents

Publication Filing date Title
CN105064968A Oil and gas well fixed-face perforation fracturing device for hydrofracture
CN103590790A Simulating perforating bullet, composite perforator and perforating operation method
CN103590791A Horizontal well perforating device
CN103590802A Horizontal well staged fracturing device and method
CN103256029A Method and device for cable conveying secondary well-descending oriented perforation
CN103089202A Tension bar type pressure exploder
CN103089203A Pressure relief device of dynamic negative pressure perforating operation
CN102489738A Method and device for machining inner blind hole of perforating gun for oil-gas well
CN102418489A Shape correcting machine for reshaping oil-gas well sleeve
CN102410006A Explosive loading structure for multi-stage composite perforating device
CN102052068A Method and device for composite fracturing/perforating for oil/gas well
CN102052066A Dynamic seal pressing method and device for improving complex perforation pressing crack effect