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CHENGDU ZHONGZHI CHENGCHENG PETROLEUM TECH CO LTD

Overview
  • Total Patents
    12
  • GoodIP Patent Rank
    140,858
  • Filing trend
    ⇧ 50.0%
About

CHENGDU ZHONGZHI CHENGCHENG PETROLEUM TECH CO LTD has a total of 12 patent applications. It increased the IP activity by 50.0%. Its first patent ever was published in 2017. It filed its patents most often in China. Its main competitors in its focus markets civil engineering are ROCKMORE INTERNATIONAL INC, RENOVUS LTD and OILPHASE SAMPLING SERVICES LTD.

Patent filings in countries

World map showing CHENGDU ZHONGZHI CHENGCHENG PETROLEUM TECH CO LTDs patent filings in countries
# Country Total Patents
#1 China 12

Patent filings per year

Chart showing CHENGDU ZHONGZHI CHENGCHENG PETROLEUM TECH CO LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Focus technologies

# Technology
#1 Earth drilling

Top inventors

# Name Total Patents
#1 Shi Jianguo 12
#2 Liu Yaqing 3

Latest patents

Publication Filing date Title
CN111577204A Underground cascade sliding sleeve system
CN110107237A A kind of down-hole string by-passing valve and its application method
CN110374551A A kind of underground hydraulic-control starting sliding sleeve control system and control method
CN108361003A A kind of automatic opening self-sealing underground pressure difference sliding sleeve
CN108194050A A kind of underground sliding sleeve open method and device
CN108343396A A kind of remote pressure control self-sealing underground pressure difference sliding sleeve
CN108361004A A kind of remote RF ID controls self-sealing pressure difference sliding sleeve
CN108266157A A kind of remote electromagnetic wave controls underground pressure difference sliding sleeve
CN106837264A A kind of down-hole casing perforating gun control system and control method
CN107060720A Trigger sliding sleeve in a kind of underground
CN106907129A Trigger sliding sleeve control system and control method in a kind of underground
CN106837265A A kind of new down-hole casing perforating methods