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Hangzhou donghua chain group co ltd

Overview
  • Total Patents
    65
  • GoodIP Patent Rank
    27,482
  • Filing trend
    ⇧ 22.0%
About

Hangzhou donghua chain group co ltd has a total of 65 patent applications. It increased the IP activity by 22.0%. Its first patent ever was published in 2008. It filed its patents most often in China, EPO (European Patent Office) and United States. Its main competitors in its focus markets machine tools, mechanical elements and measurement are SUZHOU UNIVERSAL GROUP TECH CO LTD, HANGZHOU XIAOER TECHNOLOGY CO LTD and KMC CHAIN IND CO LTD.

Patent filings in countries

World map showing Hangzhou donghua chain group co ltds patent filings in countries

Patent filings per year

Chart showing Hangzhou donghua chain group co ltds patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Xuan Bihua 32
#2 Xuan Cheng 27
#3 Ye Bin 26
#4 Wang Hongjun 22
#5 Xing Jianheng 15
#6 Lu Xudong 15
#7 Wang Lili 10
#8 Liao Hangzhou 10
#9 Zhang Jiancong 8
#10 Wu Dao 7

Latest patents

Publication Filing date Title
CN112192284A Chain clamping device
CN111594575A Novel silent chain and assembling method thereof
CN111207716A Distortion angle detection and correction instrument
CN110976749A Plate-type chain lengthening and riveting head equipment
CN110521390A A kind of pulling chain and rubber assembly manufacturing technique method with pooling feature
CN109230844A A kind of pintle chain automatic rolling equipment
CN109013073A A kind of sealing ring chain gets rid of oil machine
CN108792911A A kind of improved-type step chain of lubrication
CN108981586A Chain marker slip method for detecting position and the full-scale detection device of chain and method
CN108375343A A kind of chain intelligence prestretching chain length detection method and its device
CN108278329A A kind of roller chain sleeve rolling process
CN108262439A A kind of outer attached plate of membrane clip chain integrates process for stamping and forming
CN108262396A A kind of membrane clip chain couples the automatic continuous process for stamping and forming of attached plate
CN107606462A A kind of sleeve oiling device
CN107655387A Step is away from measurement apparatus
CN107626884A A kind of escalator chain step chain press mounting die
CN107570565A A kind of U-shaped bending press of bearing pin material
CN107621215A Pin shaft fillet measuring method and the measuring instrument using this method
CN107650006A A kind of semi-automatic Jing Yin dry type rolling processing unit (plant)
CN107503986A A kind of self-loopa cooling oil-water separating net band stove blower fan