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SICHUAN CHANGYI OIL GAS GATHERING TRANSP EQUIPMENT CO LTD

Overview
  • Total Patents
    12
  • GoodIP Patent Rank
    150,271
  • Filing trend
    ⇧ 200.0%
About

SICHUAN CHANGYI OIL GAS GATHERING TRANSP EQUIPMENT CO LTD has a total of 12 patent applications. It increased the IP activity by 200.0%. Its first patent ever was published in 2013. It filed its patents most often in China. Its main competitors in its focus markets mechanical elements, basic materials chemistry and chemical engineering are JIANGSU XINGYA MARINE VALVE CO LTD, SHANGHAI GEAR PLASTIC CO LTD and NANTONG QICHENG VALVE CO LTD.

Patent filings in countries

World map showing SICHUAN CHANGYI OIL GAS GATHERING TRANSP EQUIPMENT CO LTDs patent filings in countries
# Country Total Patents
#1 China 12

Patent filings per year

Chart showing SICHUAN CHANGYI OIL GAS GATHERING TRANSP EQUIPMENT CO LTDs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Wang Yuanqing 8
#2 Chen Yongzhong 5
#3 Song Shuzhong 5
#4 Wei Liankang 5
#5 Zhao Wen 5
#6 Zhang Yuewei 4
#7 Weng Changxiang 4
#8 Xu Guibin 4
#9 Xiong Deyou 4
#10 Yang Xuebo 4

Latest patents

Publication Filing date Title
CN111981169A Pilot operated safety valve for urban gas
CN111981168A Pilot operated safety valve
CN111359333A Automatic filter element cleaning and sewage discharging system suitable for gas filter
CN110358595A A kind of high-efficiency multi-stage whirlwind, which adds, catches mist separator
CN110159772A A kind of throttle valve of three-level throttle type
CN110195783A Piston valve core pressure self-balancing cut-off throttle valve
CN109469735A A kind of three sealed valve core valve seat construction of bivalve mouth
CN108716558A Axial-flow type safety shut-off valve and its superpressure block control system
CN108708999A A kind of low-pressure pilot-type safety valve
CN107596923A Lithium carbonate filter
CN104358904A Diaphragm type control valve
CN103307323A High-pressure reducing valve