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CHENGDU DAMO PETROLEUM MACHINERY GROUP CO LTD

Overview
  • Total Patents
    179
  • GoodIP Patent Rank
    9,259
About

CHENGDU DAMO PETROLEUM MACHINERY GROUP CO LTD has a total of 179 patent applications. Its first patent ever was published in 2013. It filed its patents most often in China. Its main competitors in its focus markets machine tools, chemical engineering and mechanical elements are HURSKAINEN AARNE, DUCKWON INDUSTRY DEV CO LTD and SAVARD DONALD D.

Patent filings in countries

World map showing CHENGDU DAMO PETROLEUM MACHINERY GROUP CO LTDs patent filings in countries
# Country Total Patents
#1 China 179

Patent filings per year

Chart showing CHENGDU DAMO PETROLEUM MACHINERY GROUP CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 He Changming 177
#2 Xiang Yong 1
#3 Yan Yuanqi 1
#4 Tan Liping 1

Latest patents

Publication Filing date Title
CN105066102A Double-chamber container water level measuring and compensating system
CN105035653A Device improving oil raw material conveying efficiency
CN105109923A System capable of achieving extending and adjusting of belt body
CN106111385A A kind of distribution system
CN105083920A Supply mechanism preventing belt from getting stuck in oil exploitation
CN105066103A Device used for automatically measuring and compensating for water level
CN105127029A Distribution efficiency improving device
CN105149132A Oil liquid distribution protective device
CN105197539A Quantitative supply device for oil exploitation
CN105041604A Oil liquid distribution system capable of protecting component
CN104832712A Supporting equipment for petroleum transmission pipeline
CN104828740A System for improving hoisting stability of petroleum component
CN104832709A Docking equipment for petroleum transmission pipeline
CN104849140A Mechanical structure with oil part strength test function
CN104827335A Hoisting system used in processing process of petroleum component
CN104828724A Oil pipeline hoisting auxiliary equipment
CN104849033A Drill bit quality detection equipment
CN104833588A Device capable of improving test accuracy
CN104832695A Quick opening/closing equipment for valve of petroleum transmission pipeline
CN104896308A Oil transportation pipeline protection device