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DALIAN YIDUO PIPING CO LTD

Overview
  • Total Patents
    30
  • GoodIP Patent Rank
    223,027
About

DALIAN YIDUO PIPING CO LTD has a total of 30 patent applications. Its first patent ever was published in 2009. It filed its patents most often in China. Its main competitors in its focus markets mechanical elements are KY ALYUMINIEVYJ Z IM 50 LETIYA, INBA DENKI SANGYO KK and DAFENG LYUYE XINZHONG AGRICULTURAL DEV CO LTD.

Patent filings in countries

World map showing DALIAN YIDUO PIPING CO LTDs patent filings in countries
# Country Total Patents
#1 China 30

Patent filings per year

Chart showing DALIAN YIDUO PIPING CO LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Mechanical elements

Focus technologies

# Technology
#1 Pipes

Top inventors

# Name Total Patents
#1 Yonglin Sun 27
#2 Bo Jia 5
#3 Defu Han 4
#4 Yunhe Wang 2
#5 Shi Chaoxu 2
#6 Yanming Ren 1
#7 Liu Yumin 1
#8 Su Shiyou 1
#9 Xiangshan Liu 1
#10 Chang Chunjiang 1

Latest patents

Publication Filing date Title
CN104235546A Precast insulated full-rubber U-shaped corrugated pipe one-way directly-buried sleeve compensator
CN103953821A Multi-branch high-pressure material injection device
CN102537527A Internal expansion bolt pipe lifting frame
CN102537579A Corrugated expansion joint
CN102537578A Corrugated expansion joint
CN102563258A Sleeve expansion piece
CN102563253A Spherical compensator
CN102537526A Pipeline hanger
CN102537556A Double-supporting self-sealed rotating compensator
CN102563275A Superposed compound sleeve compensator
CN102556843A Hoisting tool for sleeve workpiece
CN102537581A Full-fixation-type bi-directional outer pipe metal corrugated compensator
CN102537105A Metal corrugated tube type elastic coupler
CN102537582A Full-fixation-type combined hydrophobic-type bi-directional outer pipe corrugated compensator
CN102537577A Insulation structure of directly-buried high-temperature hot water sleeve compensator
CN102537595A Heat insulation structure of hot water sleeve compensator
CN102537594A Heat insulating structure of directly-buried middle-temperature and low-temperature hot water sleeve compensator
CN102537555A Anti-settling compensator
CN102563287A Directly-buried high-temperature hot water fixed section structure
CN102330864A Sleeve compensator with built-in bellows