Learn more

HEFEI CHANGYUAN HYDRAULICS CO

Overview
  • Total Patents
    56
  • GoodIP Patent Rank
    43,051
About

HEFEI CHANGYUAN HYDRAULICS CO has a total of 56 patent applications. Its first patent ever was published in 2008. It filed its patents most often in China. Its main competitors in its focus markets mechanical elements, civil engineering and surface technology and coating are ATLANTIC FLUID TECH S R L, ALPHA FLUID HYDRAULIKSYSTEME M and NEUMEISTER HYDRAULIK GMBH.

Patent filings in countries

World map showing HEFEI CHANGYUAN HYDRAULICS COs patent filings in countries
# Country Total Patents
#1 China 56

Patent filings per year

Chart showing HEFEI CHANGYUAN HYDRAULICS COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liu Yong 18
#2 Zhang Yong 18
#3 Guan Yanmei 15
#4 Jia Lingling 9
#5 Cai Wei 8
#6 Zheng Jinchao 8
#7 Chen Wenhui 7
#8 Tao Xin Gao 7
#9 Tao Xingao 7
#10 Jiang Pengpeng 7

Latest patents

Publication Filing date Title
CN106392585A Lining press-fitting tool
CN105864137A Integral type priority multiway valve
CN105840976A High-pressure gear oil pump
CN105757042A Anticorrosion single-action hydraulic cylinder
CN105715612A Throttling buffer cylinder with integrated buffer cylinder bottom
CN105696061A Electroplating clamp for barrel-shaped workpiece
CN105626617A Pressure control device in static hydraulic system
CN104819152A Inlay uniting type gear oil pump body
CN104819151A Gear oil pump with inlay uniting type pump body and side plates with damping holes
CN104832429A Gear oil pump side plate provided with damping holes
CN104895863A Servo hydraulic cylinder with integral cylinder bottom
CN104791325A Pressurization prevention multistage oil cylinder
CN104728204A Distributor for tractor
CN104776078A Distributor with automatic restoring function for tractor
CN104747522A Tractor distributor with balancing guide rod
CN104712778A High-stability one-way valve used for valve
CN104747521A Tractor distributor with high-stability one-way valve
CN104389833A Multichannel reversing valve preventing fault operation
CN104315200A Single valve element type multichannel reversing valve
CN104179632A Bidirectional gear motor