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CHONGQING QIANWEI OFFSHORE PETROLEUM ENG & EQUIPMENT CO LTD

Overview
  • Total Patents
    12
  • GoodIP Patent Rank
    136,361
  • Filing trend
    ⇩ 100.0%
About

CHONGQING QIANWEI OFFSHORE PETROLEUM ENG & EQUIPMENT CO LTD has a total of 12 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2016. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, mechanical elements and electrical machinery and energy are SEABOARD LLOYD LTD, ZP INTERESTS LLC and NAT COUPLING COMPANY.

Patent filings in countries

World map showing CHONGQING QIANWEI OFFSHORE PETROLEUM ENG & EQUIPMENT CO LTDs patent filings in countries
# Country Total Patents
#1 China 12

Patent filings per year

Chart showing CHONGQING QIANWEI OFFSHORE PETROLEUM ENG & EQUIPMENT CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ye Tianyuan 8
#2 Li Rong 7
#3 Lin Caiming 6
#4 Gong Guanghui 6
#5 Shi Jing 6
#6 Huang Rongji 5
#7 Tan Shuangni 5
#8 Du Zhenwei 5
#9 Zhang Tao 4
#10 Zhang Feng 4

Latest patents

Publication Filing date Title
CN108022737A A kind of electric fly line for Subsea Control Systems
CN107989577A Needle-valve for underwater horizontal type production tree
CN107939328A Underwater production tree cup running tool
CN107842332A A kind of coronal get back into puts the tools away
CN107939324A A kind of coronal plug installation tool
CN105952402A Throttling valve feeding-in tool
CN105736805A Valve element recyclable type underwater throttle valve
CN105805396A Stepping linear driver driving ratchet wheel to rotate through hydraulic pressure
CN105806567A Oil outlet pipe joint testing stopper
CN105508782A Deep water multi-loop vertical connection male connection terminal
CN105485458A Deepwater multi-loop vertical connection female connector terminal
CN105484675A Deepwater multi-loop vertical connection terminal