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CHANGSHU SEAMLESS STEEL TUBE CO LTD

Overview
  • Total Patents
    14
  • GoodIP Patent Rank
    172,270
  • Filing trend
    ⇧ 50.0%
About

CHANGSHU SEAMLESS STEEL TUBE CO LTD has a total of 14 patent applications. It increased the IP activity by 50.0%. Its first patent ever was published in 2011. It filed its patents most often in China. Its main competitors in its focus markets machine tools, surface technology and coating and thermal processes are WUXI YUANCHANG MACHINE MFT CO LTD, SUZHOU JINJUSONG MECH AND ELECTRICAL CO LTD and RATHBONE ANDREW.

Patent filings in countries

World map showing CHANGSHU SEAMLESS STEEL TUBE CO LTDs patent filings in countries
# Country Total Patents
#1 China 14

Patent filings per year

Chart showing CHANGSHU SEAMLESS STEEL TUBE CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tang Xiguo 7
#2 Guo Jianhua 7
#3 Zhou Yunfeng 7
#4 Ye Qing 7
#5 Zhang Xiaolong 6
#6 Wu Yi 6
#7 Zhou Guoqiang 6
#8 Qian Jun 4
#9 Jianguo Lu 4
#10 Guoqiang Chen 3

Latest patents

Publication Filing date Title
CN108393365A Heading machine draw rotary machine hand
CN108421842A The processing method of hexagonal alloy seamless steel pipe in outer circle
CN108344297A A kind of step-by-step movement combustion furnace
CN107952807A The pipe feed device of bench
CN107876569A Seamless pipe trombone slide trailer wagon
CN104181045A Steel pipe water pressure detection device with automatic steel pipe clamping function
CN104181047A Steel pipe water pressure detecting device
CN104181046A Automatic detector for water pressure of steel pipe
CN103939163A Variable valve rockshaft structure
CN102632102A Machining method of abnormal tubular product for lift control switch
CN102399964A Steel pipe normalizing furnace
CN102398098A Full-automatic arc cold centering device
CN102489944A Processing method of 2Cr13 rectangular pipe
CN102179437A Head driving process of hammer head of hot rolling pierced billet