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Shanghai, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Process for on-line quenching of seamless steel tube using residual...
Patent number
11,293,072
Issue date
Apr 5, 2022
Baoshan Iron & Steel Co., Ltd.
Zhonghua Zhang
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing bainite high-strength seamless steel tube,...
Patent number
11,203,794
Issue date
Dec 21, 2021
Baoshan Iron & Steel Co., Ltd.
Yaoheng Liu
C21 - METALLURGY OF IRON
Information
Patent Grant
Seamless steel tube with high strength and toughness and manufactur...
Patent number
11,015,232
Issue date
May 25, 2021
Baoshan Iron & Steel Co., Ltd.
Yaoheng Liu
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
Information
Patent Application
HIGH-STRENGTH AND HIGH-TOUGHNESS BAINITE GEOLOGICAL DRILLING PIPE A...
Publication number
20240229979
Publication date
Jul 11, 2024
Baoshan Iron & Steel Co., Ltd
Wen SUN
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-STRENGTH AND HIGH-TOUGHNESS BAINITE GEOLOGICAL DRILLING PIPE A...
Publication number
20240133490
Publication date
Apr 25, 2024
Baoshan Iron & Steel Co., Ltd
Wen SUN
C21 - METALLURGY OF IRON
Information
Patent Application
Seamless Line Pipe Resistant to Corrosion by CO2/H2S and Sulfate-Re...
Publication number
20180312937
Publication date
Nov 1, 2018
China University of Petroleum-Beijing
Haobo Yu
C21 - METALLURGY OF IRON
Information
Patent Application
ONLINE-CONTROL COOLING PROCESS FOR SEAMLESS STEEL TUBE FOR EFFECTIV...
Publication number
20180298459
Publication date
Oct 18, 2018
Baoshan Iron & Steel Co., Ltd
Yaoheng LIU
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR MANUFACTURING BAINITE HIGH-STRENGTH SEAMLESS STEEL TUBE,...
Publication number
20180282833
Publication date
Oct 4, 2018
Baoshan Iron & Steel Co., Ltd
Yaoheng LIU
C21 - METALLURGY OF IRON
Information
Patent Application
SEAMLESS STEEL TUBE WITH HIGH STRENGTH AND TOUGHNESS AND MANUFACTUR...
Publication number
20180274054
Publication date
Sep 27, 2018
Yaoheng LIU
C21 - METALLURGY OF IRON
Information
Patent Application
PROCESS FOR ON-LINE QUENCHING OF SEAMLESS STEEL TUBE USING RESIDUAL...
Publication number
20180265941
Publication date
Sep 20, 2018
Baoshan Iron & Steel Co., Ltd
Zhonghua ZHANG
C21 - METALLURGY OF IRON