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YUNNAN DAHONGSHAN PIPELINE CO

Overview
  • Total Patents
    309
  • GoodIP Patent Rank
    8,407
  • Filing trend
    0.0%
About

YUNNAN DAHONGSHAN PIPELINE CO has a total of 309 patent applications. It increased the IP activity by 0.0%. Its first patent ever was published in 2009. It filed its patents most often in China. Its main competitors in its focus markets chemical engineering, mechanical elements and engines, pumps and turbines are FLOWTECH CO LTD, KOPP GMBH INT PIPELINE SERVICE and GUANGDONG WULIAN INTELLIGENT TECH CO LTD.

Patent filings in countries

World map showing YUNNAN DAHONGSHAN PIPELINE COs patent filings in countries
# Country Total Patents
#1 China 309

Patent filings per year

Chart showing YUNNAN DAHONGSHAN PIPELINE COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Pan Chunlei 86
#2 Pu Guangyue 73
#3 Guangyue Pu 59
#4 Jian An 59
#5 Bai Jianmin 50
#6 Qu Chengzhong 47
#7 Chaobing Huang 46
#8 Ma Bo 42
#9 Zhao Zengjia 42
#10 Li Jianfeng 32

Latest patents

Publication Filing date Title
CN112145971A Device and method for effectively controlling water hammer to prevent valve from being closed
CN112112136A Force-eliminating discharge device of long-distance water conveying and transferring system and operation method
CN112196783A Automatic control starting method for pump set of long-distance large-pipe-diameter water delivery and transfer pump station
CN112194208A Mine production water system and pool and pipeline layout method thereof
CN112096623A Automatic shutdown control method for pump set of long-distance large-pipe-diameter pipeline water delivery pump station
CN112032365A Check valve with controllable opening and closing, water delivery and water transfer unit and control method
CN111980890A Device for preventing damage of water hammer after positive displacement diaphragm pump accident and control method
CN111741070A Long-distance large-scale water delivery and distribution point monitoring system
CN111603847A Preparation method of ceramic plate, ceramic plate and ceramic filter plate
CN111691498A Preventive control method and device for large-scale water delivery and transfer unit
CN110747924A Desilting device and method applied to water pool in large-scale water conveying and transferring system
CN110743240A Filtering system and filtering method applied to lubricating oil in large-scale water delivery and transfer system
CN110745925A Cross use system among material pools and control method
CN110848573A Double-line intercommunicated stirring tank of pipeline conveying pump station and control method thereof
CN110820670A Pipeline emptying device and method for complex-terrain long-distance pipeline water delivery and transfer system
CN110788614A Special device and method for assembly
CN110630906A Device for eliminating water hammer in pipeline at tail end of long-distance large-diameter pipeline water delivery pipeline
CN110645479A Slurry pipeline with double automatic pressure relief protection devices and pressure relief method thereof
CN110601352A Automatic switching device for main and standby power supplies of lubricating system in long-distance large-pipe-diameter water regulating system and implementation method
CN110608952A Hydraulic test system and test method applied to large-diameter conveying pipeline