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HUNAN LIWEI HYDRAULIC EQUIPMENT CO LTD

Overview
  • Total Patents
    13
  • GoodIP Patent Rank
    179,061
About

HUNAN LIWEI HYDRAULIC EQUIPMENT CO LTD has a total of 13 patent applications. Its first patent ever was published in 2007. It filed its patents most often in China. Its main competitors in its focus markets mechanical elements, civil engineering and environmental technology are UENO TADAO, BAKER HAM & CO LTD and SALGAT FRANCIS.

Patent filings in countries

World map showing HUNAN LIWEI HYDRAULIC EQUIPMENT CO LTDs patent filings in countries
# Country Total Patents
#1 China 13

Patent filings per year

Chart showing HUNAN LIWEI HYDRAULIC EQUIPMENT CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhou Qian 5
#2 Zhang Yi 5
#3 Zhou Weidong 4
#4 Zhang Jian 3
#5 Gang Feng 1
#6 Xiao Peijian 1
#7 Bingji Zhao 1
#8 Weidong Zhou 1

Latest patents

Publication Filing date Title
CN111493327A Betel nut pressing machine
CN110486526A A kind of energy-saving free side-turning type flap valve buffer
CN110374831A It is a kind of quantitative radial with oil pump
CN110541398A Movable cofferdam type barrage
CN110578731A Rotary joint and oil cylinder hinged support integrated oil cylinder
CN110565583A Side stagnant water device with adjustable it is removable
CN109340384A A kind of energy-saving free side-turning type flap valve
CN105133552A Balance type hydraulic barrage
CN103047450A Hinge type buoyancy tank opening flap valve
CN103047261A Connecting hinge for opening floating box flap valve
CN103015893A Non-excavation horizontal directional drilling machine
CN102358058A Hydraulic coal bar machine
CN101324049A Multifunctional hydraulic scribing and fissure cementing machine