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Jiangsu changbao steel tube co ltd

Overview
  • Total Patents
    23
  • GoodIP Patent Rank
    87,782
  • Filing trend
    ⇧ 200.0%
About

Jiangsu changbao steel tube co ltd has a total of 23 patent applications. It increased the IP activity by 200.0%. Its first patent ever was published in 2010. It filed its patents most often in China. Its main competitors in its focus markets materials and metallurgy, civil engineering and machine tools are WILLIAM JESSOP AND SONS LTD, FIRTH BROWN LTD and UNITED PIPELINES ASIA PACIFIC PTE LTD.

Patent filings in countries

World map showing Jiangsu changbao steel tube co ltds patent filings in countries
# Country Total Patents
#1 China 23

Patent filings per year

Chart showing Jiangsu changbao steel tube co ltds patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Jun 9
#2 Xu Caibin 9
#3 Feng Yuming 6
#4 Gao Jianchang 6
#5 Wang Yong 5
#6 Jing Lei 5
#7 Zhang Jinsong 4
#8 Yao Weimin 4
#9 Qiu Ji 3
#10 Chen Hailong 3

Latest patents

Publication Filing date Title
CN108756773A Direct linkage type oil bushing threaded connector structure
CN108952594A A kind of low stress screw connection structure
CN108952595A A kind of air-tight seal screw joint
CN106834952A Oil cylinder bobbin and preparation method thereof
CN106119727A The anti-CO of below high-strength tenacity 80Ksi2corrosion seamless gathering-line pipe and manufacture method thereof
CN105928363A U-shaped compound fire damper beam capable of avoiding interference between temperature fields in steel billet annular heating furnace
CN105715932A Oil temperature control device for hydraulic oil supply system
CN104989334A Blind-hole-free perforating gun pipe with two thickened ends and thin-wall middle and manufacturing method of blind-hole-free perforating gun pipe
CN104930300A Pipe end anti-corrosive sealing structure of anti-corrosive oil pipe
CN104624714A Super-short oil tube pup joint three-cylinder opposite vertex compressing and molding equipment and using method thereof
CN104624715A Tube end upsetting molding method of super-short oil tube pup joint
CN104653123A Coupling-free direct connecting spinning joint oil pipe
CN104634225A Three-contact detecting device for measuring diameter of sealing conical surface in coupling, zero calibration ring gauge and measuring method
CN104651726A Seamless steel pipe for perforating gun
CN104651725A Preparation technique of seamless steel tube for perforating guns
CN104388825A Preparation process of anti-CO2-corrosion oil well pipe with steel grade of less than 150ksi produced by CPE unit
CN104451394A Anti-CO2 corrosion oil well pipe below 150 ksi produced by CPE unit and production method thereof
CN103805844A Boron-containing seamless pipe line pipe for ocean oil and gas exploitation
CN103820708A Preparation method of boron-containing seamless pipeline for marine petroleum and natural gas exploitation
CN103736734A Process of preparing high-chromium alloy supper 13-Cr seamless steel tubes through CPE (cross-roll piercing and elongation) hot rolling mill