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CHANGZHI CITY YONGHUA MACHINERY CO LTD

Overview
  • Total Patents
    77
  • GoodIP Patent Rank
    20,714
  • Filing trend
    ⇩ 100.0%
About

CHANGZHI CITY YONGHUA MACHINERY CO LTD has a total of 77 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2012. It filed its patents most often in China. Its main competitors in its focus markets packaging and shipping, machine tools and transport are HENAN HUAXIANG LIFTING MACHINERY CO LTD, SHANGHAI LONGYU ELEVATOR ACCESSORIES CO LTD and ADIGE SALA SPA.

Patent filings in countries

World map showing CHANGZHI CITY YONGHUA MACHINERY CO LTDs patent filings in countries
# Country Total Patents
#1 China 77

Patent filings per year

Chart showing CHANGZHI CITY YONGHUA MACHINERY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chang Buhai 76
#2 Ma Xiaoli 67
#3 Si Tianshan 65
#4 Kong Renshan 59
#5 Wang Xiaodong 54
#6 Wang Haibin 30
#7 Dong Zhiqiang 29
#8 Chang Jinfeng 28
#9 Yuan Leiming 28
#10 Huang Xiaoli 28

Latest patents

Publication Filing date Title
CN109534142A T pin card shell type hangs connected device
CN109534208A Four cylinder two-stages arrange cylinder elevating mechanism
CN109534156A Presetting system bracket shipment hook
CN109505636A Hydraulic support automatic coupling
CN109505820A Hydraulic floating support
CN109505635A Hydraulic support self-unloading hook
CN109501876A Heavy thrust wheel independent suspension
CN105836446A Hidden shovel plate type support feeding mechanism
CN105834995A Device for eliminating mounting error of floating sealing ring
CN105840233A Crow plate type hydraulic support loading device
CN105836490A Support loading and unloading device
CN105905022A Multi-functional emulsion power bracket shifting machine
CN105835698A Transmission system for crawler type rack conveying vehicle
CN105836609A Automatic hydraulic support lifting device for crawler type transportation and erection vehicle
CN105835699A Multi-disc brake type universal driving axle for coal mine
CN105127845A Tool-post grinder
CN105151141A Dual-power multifunctional crawler-type underground mancar
CN105151139A Dual-power multifunctional crawler-type underground dragging vehicle
CN105129625A Dual-power multifunctional crawler-type underground telpher
CN105151140A Dual-power multifunctional crawler-type underground probe vehicle