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ZHEJIANG DUNAN VALVES CO LTD

Overview
  • Total Patents
    42
  • GoodIP Patent Rank
    160,175
About

ZHEJIANG DUNAN VALVES CO LTD has a total of 42 patent applications. Its first patent ever was published in 2010. It filed its patents most often in China. Its main competitors in its focus markets mechanical elements and chemical engineering are TIANJIN FSK FLOW CONTROL EQUIPMENT CO LTD, Hubei taihe petrochemical equipment co ltd and JIANGSU ANPU VALVE MACHINERY CO LTD.

Patent filings in countries

World map showing ZHEJIANG DUNAN VALVES CO LTDs patent filings in countries
# Country Total Patents
#1 China 42

Patent filings per year

Chart showing ZHEJIANG DUNAN VALVES CO LTDs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Zhu Xinyan 18
#2 Ye Chen 13
#3 Jiang Guangshuang 8
#4 Ye Deqiang 6
#5 Qian Jinming 5
#6 Zhao Mingxiang 5
#7 Zhou Yunbing 4
#8 Chen Gang 4
#9 Yin Shengzhou 4
#10 Xiaodong Liu 3

Latest patents

Publication Filing date Title
CN106439082A Leakproof ball check valve provided with lock
CN105546181A Dynamic-balance electric two-way valve
CN104896112A Balanced large-flow valve core structure
CN104847919A Multifunctional antitheft gas ball valve
CN104633192A High-sensitivity overpressure protective device
CN104633206A Filter type piston pressure reduction valve
CN104534134A High-precision diaphragm type muting pressure reduction valve
CN104405936A Low-resistance decompression type backflow prevention device
CN104455612A Dynamic flow balancing valve with low vibration
CN104180065A Reciprocating-type valve core non-return sealing structure
CN104180012A Elastic compensation non-metallic sealing structure for spherical valve
CN103742687A Multi-spool dynamic flow balance valve
CN103711938A Thermostatic valve with preset flow distribution ratio
CN103742688A High-precision dynamic flow balance valve
CN103807475A Number lock balance valve
CN103599849A Magnetic dirt separator
CN103542148A Reducing valve with filtering and backflow preventing functions
CN103542103A Manual temperature control regulating valve
CN103537137A Centrifugation rotation-type exhaust dirt separator
CN103542154A Dynamic flow balance valve