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CHENGDU CHENHUI SPRING MFG CO LTD

Overview
  • Total Patents
    22
  • GoodIP Patent Rank
    241,736
About

CHENGDU CHENHUI SPRING MFG CO LTD has a total of 22 patent applications. Its first patent ever was published in 2013. It filed its patents most often in China. Its main competitors in its focus markets machine tools are LI WENQUAN, JIANGSU JINGJIANG INSTR TRANSFORMER FACTORY and IMAHASHI TAKAHIRO.

Patent filings in countries

World map showing CHENGDU CHENHUI SPRING MFG CO LTDs patent filings in countries
# Country Total Patents
#1 China 22

Patent filings per year

Chart showing CHENGDU CHENHUI SPRING MFG CO LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Machine tools

Focus technologies

Top inventors

# Name Total Patents
#1 Yan Yuanqi 21
#2 Xiang Yong 21
#3 He Yang 1
#4 Zhu Fei 1

Latest patents

Publication Filing date Title
CN111037389A Spring end face polishing device and polishing method thereof
CN103267599A Fixing device with strong universality for testing of spring torque
CN103240650A General polishing device for end faces of springs
CN103240653A Roller type spring polishing device
CN103240368A Spring wire feeder with accurate wire feeding length control function
CN103231941A Inlet line control device used for spring production
CN103240365A Adjustable spring winding device
CN103240369A Spring straightener stable in structure
CN103233995A Laminated spring structure
CN103245441A Spring pressure testing machine with simple structure
CN103245472A Spring tension testing machine convenient for data reading
CN103245471A Device for testing elasticity of spring
CN103231886A Spring conveying frame with variable height
CN103231887A Spring conveying frame
CN103264864A Spring conveying device with simple structure
CN103278298A Device for testing spring pressure
CN103245438A Device with protection function in spring elastic force detection
CN103245440A Fixing device used in elasticity detection of spring
CN103244595A Spring structure with high pressure resistance
CN103245497A Spring tester providing stretching test function