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YANGZHOU LONTRIN STEEL TUBE CO LTD

Overview
  • Total Patents
    25
  • GoodIP Patent Rank
    137,219
About

YANGZHOU LONTRIN STEEL TUBE CO LTD has a total of 25 patent applications. Its first patent ever was published in 2007. It filed its patents most often in China. Its main competitors in its focus markets materials and metallurgy, civil engineering and measurement are SUZHOU XIANGLOU NEW MAT CO LTD, SUNG JIN KYUNG and WALES SAMUEL SIGOURNEY.

Patent filings in countries

World map showing YANGZHOU LONTRIN STEEL TUBE CO LTDs patent filings in countries
# Country Total Patents
#1 China 25

Patent filings per year

Chart showing YANGZHOU LONTRIN STEEL TUBE CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 You Fengzhi 16
#2 Xia Kui 15
#3 Wu Shikang 10
#4 Shi Shanmiao 9
#5 Ma Ziqiang 8
#6 Baoshun Xu 5
#7 Zhao Hanying 4
#8 Liu Cheng 4
#9 Liu Zejun 4
#10 Liu Jin 4

Latest patents

Publication Filing date Title
CN109505530A A kind of tubing and casing Hermetical connecting structure
CN109488223A A kind of novel seal button oil annular tube structure
CN109459495A A kind of pipe end failure detector
CN109371204A A kind of heavy caliber high-strength BJ890 crane arm support seamless steel pipe and its production method
CN109402365A A kind of conditioning treatment process solving T/P91, T/P92 mixed grain structure
CN109439887A A kind of T/P92 steel pipe delta ferrite control method
CN109439886A The control method of small-bore 12Cr1MoVG steel pipe decarburized layer
CN104399797A Steel tube spinning lathe and steel tube machining process utilizing spinning lathe
CN103757561A Large-caliber thick-wall marine seamless steel tube and TMCP (thermomechanical rolling process) production method thereof
CN103866203A Seamless steel pipe for large-aperture high-strength bridge and TMCP production method thereof
CN103757560A Large-caliber high-strength seamless steel tube for machinery and TMCP (thermomechanical rolling process) production method thereof
CN103774063A Oil casing with large caliber and TMCP (Thermal Mechanical Control Processing) production method thereof
CN103084392A Cooling device of seamless steel pipe puncher roof
CN103084419A Outlet guiding device of seamless steel pipe rolling mill
CN103433282A Stopper mechanism for top of seamless steel tube puncher
CN102371313A Shrinking machine
CN102358564A Grab machine
CN102343361A Composite perforating machine
CN102343364A Three-roller rotary sizing mill
CN102343362A Perforating and extending integrated machine