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PETROCHINA CO LTD

Overview
  • Total Patents
    14,423
  • GoodIP Patent Rank
    123
  • Filing trend
    ⇧ 37.0%
About

PETROCHINA CO LTD has a total of 14,423 patent applications. It increased the IP activity by 37.0%. Its first patent ever was published in 1999. It filed its patents most often in China, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets civil engineering, measurement and basic materials chemistry are UNIV CHINA PETROLEUM BEIJING, CHINA NAT OFFSHORE OIL CORP and ALBERTA OIL SANDS TECH.

Patent filings per year

Chart showing PETROCHINA CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Xianwen 194
#2 Li Jing 184
#3 Gong Guangbi 172
#4 Gao Xionghou 166
#5 Chang Xiaoxin 165
#6 Wang Wei 162
#7 Qian Ying 156
#8 Liang Tao 155
#9 Wang Sihan 152
#10 Wang Hao 149

Latest patents

Publication Filing date Title
CN112228055A Method and device for determining conversion opportunity in two-three combined development mode
CN112253079A Method and device for determining well pattern density of oil reservoir
CN112240203A Method and device for determining recovery ratio of oil reservoir
CN112267859A Periodic water injection reservoir screening quantitative evaluation method
CN112267860A Low-permeability reservoir periodic water injection effect evaluation method
CN112228053A Method for optimizing well opening time of intermittent well of tight gas reservoir
CN112253022A Well completion method and well completion equipment
CN112282703A Anti-freezing system and method for chemical feeding pipeline of oil well wellhead
CN112253102A Method and device for determining air discharge pressure of oil well casing
CN112267866A Small-diameter pipe staged fracturing production pipe column and method for side drilling well and small-hole well
CN112211601A Coiled tubing and packer combined staged fracturing string for slim-hole well and method
CN112211597A Simple plunger, plunger gas lifting device with same and application thereof
CN112282718A Combined pipe string for sidetracking well and slim hole well and use method
CN112211586A Electrically controlled self-walking packer for horizontal well
CN112282696A One-way valve and automatic intermittent pumping system and method with same
CN112282738A Horizontal well water finding and plugging integrated pipe column and testing method
CN112282737A Low-liquid-volume horizontal well liquid production profile testing device and method
CN112282747A Knee fold structure determination method and device
CN112282725A Staggered seam-laying design method for horizontal well
CN112282689A Soluble packer and using method thereof