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C21D9/085
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C
CHEMISTRY METALLURGY
C21
Iron metallurgy
C21D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
C21D9/00
Heat treatment
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C21D9/085
Cooling or quenching
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Patents Grants
last 30 patents
Information
Patent Grant
Martensitic stainless seamless steel pipe
Patent number
11,965,232
Issue date
Apr 23, 2024
Nippon Steel Corporation
Kyohei Kanki
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of forming and heat treating coiled tubing
Patent number
11,952,648
Issue date
Apr 9, 2024
Tenaris Coiled Tubes, LLC
Martin Valdez
C21 - METALLURGY OF IRON
Information
Patent Grant
Ultra-high-strength hot-rolled steel sheet, steel pipe, member, and...
Patent number
11,939,639
Issue date
Mar 26, 2024
POSCO Co., Ltd
Hwan-Goo Seong
C21 - METALLURGY OF IRON
Information
Patent Grant
Seamless steel pipe suitable for use in sour environment
Patent number
11,905,580
Issue date
Feb 20, 2024
Nippon Steel Corporation
Hiroki Kamitani
C21 - METALLURGY OF IRON
Information
Patent Grant
Seamless steel pipe heat-treatment-finishing-treatment continuous f...
Patent number
11,898,216
Issue date
Feb 13, 2024
Nippon Steel Corporation
Hiroki Kamitani
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method for manufacturing cold-forged, extruded aluminum alloy tube
Patent number
11,872,616
Issue date
Jan 16, 2024
Jin Yuncheng Enterprise Co., Ltd.
Kun-Tzu Lin
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Cooling device for seamless steel pipes
Patent number
11,873,538
Issue date
Jan 16, 2024
SMS group GMBH
Torsten Müller
C21 - METALLURGY OF IRON
Information
Patent Grant
Apparatus line for manufacturing seamless steel pipe and tube and m...
Patent number
11,821,051
Issue date
Nov 21, 2023
JFE Steel Corporation
Shunsuke Sasaki
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
High strength steel tube and method of manufacturing a high strengt...
Patent number
11,814,693
Issue date
Nov 14, 2023
Benteler Steel/Tube GmbH
Jayaram Dadda
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel pipe and method for producing steel pipe
Patent number
11,773,460
Issue date
Oct 3, 2023
Nippon Steel Corporation
Yuji Arai
C21 - METALLURGY OF IRON
Information
Patent Grant
Martensitic stainless steel seamless pipe for oil country tubular g...
Patent number
11,773,461
Issue date
Oct 3, 2023
JFE Steel Corporation
Mami Endo
C21 - METALLURGY OF IRON
Information
Patent Grant
High tensile and high toughness steels
Patent number
11,761,051
Issue date
Sep 19, 2023
Vallourec Deutschland GmbH
Mahrez Khouja
C21 - METALLURGY OF IRON
Information
Patent Grant
Multi-thickness welded vehicle structure
Patent number
11,761,052
Issue date
Sep 19, 2023
Multimatic Inc.
Mark Sullivan
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Duplex stainless steel and method for producing same
Patent number
11,655,526
Issue date
May 23, 2023
JFE Steel Corporation
Kenichiro Eguchi
C21 - METALLURGY OF IRON
Information
Patent Grant
Hot-rolled steel sheet having excellent durability and method for m...
Patent number
11,535,908
Issue date
Dec 27, 2022
POSCO HOLDINGS INC.
Hyun-Taek Na
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing a re-shaped component from a manganese-contain...
Patent number
11,519,050
Issue date
Dec 6, 2022
Salzgitter Flachstahl GmbH
Peter Palzer
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Piercing machine, and method for producing seamless metal pipe usin...
Patent number
11,511,326
Issue date
Nov 29, 2022
Nippon Steel Corporation
Yasuhiko Daimon
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Apparatus and methods for heating and quenching tubular members
Patent number
11,473,161
Issue date
Oct 18, 2022
Grant Prideco, L.P.
Daryl Stevenson
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel material suitable for use in sour environment
Patent number
11,473,177
Issue date
Oct 18, 2022
Nippon Steel Corporation
Shinji Yoshida
C21 - METALLURGY OF IRON
Information
Patent Grant
Production method of seamless steel pipe
Patent number
11,471,923
Issue date
Oct 18, 2022
Nippon Steel Corporation
Kouji Yamane
C21 - METALLURGY OF IRON
Information
Patent Grant
Seamless steel pipe and method for producing same
Patent number
11,453,925
Issue date
Sep 27, 2022
Nippon Steel Corporation
Takeshi Miki
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for quenching steel pipe, equipment for quenching steel pipe...
Patent number
11,441,203
Issue date
Sep 13, 2022
JFE Steel Corporation
Hiroyuki Fukuda
C21 - METALLURGY OF IRON
Information
Patent Grant
Electric resistance welded steel pipe for producing hollow stabiliz...
Patent number
11,440,125
Issue date
Sep 13, 2022
JFE Steel Corporation
Masatoshi Aratani
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Systems and methods for producing hot induction pipe bends with hom...
Patent number
11,414,723
Issue date
Aug 16, 2022
Welspun Corp Limited
Balkrishan Goenka
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
High strength stainless steel seamless pipe for oil country tubular...
Patent number
11,414,719
Issue date
Aug 16, 2022
JFE Steel Corporation
Kenichiro Eguchi
C21 - METALLURGY OF IRON
Information
Patent Grant
Martensitic stainless steel seamless pipe for oil country tubular g...
Patent number
11,401,570
Issue date
Aug 2, 2022
JFE Steel Corporation
Mami Endo
C21 - METALLURGY OF IRON
Information
Patent Grant
High performance material for coiled tubing applications and the me...
Patent number
11,377,704
Issue date
Jul 5, 2022
Tenaris Coiled Tubes, LLC
Martin Valdez
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Hot-rolled steel sheet for heavy-wall, high-strength line pipe, wel...
Patent number
11,377,719
Issue date
Jul 5, 2022
JFE Steel Corporation
Sota Goto
C21 - METALLURGY OF IRON
Information
Patent Grant
Electric resistance welded steel tubes for high-strength thin hollo...
Patent number
11,332,812
Issue date
May 17, 2022
JFE Steel Corporation
Masatoshi Aratani
C21 - METALLURGY OF IRON
Information
Patent Grant
High-strength seamless steel pipe for oil country tubular goods, an...
Patent number
11,313,007
Issue date
Apr 26, 2022
JFE Steel Corporation
Masao Yuga
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
ULTRA-HIGH-STRENGTH HOT-ROLLED STEEL SHEET, STEEL PIPE, MEMBER, AND...
Publication number
20240209467
Publication date
Jun 27, 2024
POSCO Co., Ltd
Hwan-Goo Seong
C21 - METALLURGY OF IRON
Information
Patent Application
HEAT-RESISTANT STEEL FOR STEEL PIPES AND CASTINGS
Publication number
20240200161
Publication date
Jun 20, 2024
Shanghai Electric Power Generation Equipment Co., Ltd.
Linbo MEI
C21 - METALLURGY OF IRON
Information
Patent Application
STAINLESS STEEL PIPE AND METHOD FOR MANUFACTURING THE SAME
Publication number
20240191331
Publication date
Jun 13, 2024
JFE STEEL CORPORATION
Kenichiro Eguchi
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
HIGH-STRENGTH STAINLESS STEEL SEAMLESS PIPE FOR OIL COUNTRY TUBULAR...
Publication number
20240124949
Publication date
Apr 18, 2024
JFE STEEL CORPORATION
Kenichiro Eguchi
C21 - METALLURGY OF IRON
Information
Patent Application
ELECTRIC RESISTANCE WELDED STEEL PIPE AND METHOD FOR MANUFACTURING...
Publication number
20240026999
Publication date
Jan 25, 2024
JFE STEEL CORPORATION
Akihide Matsumoto
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Linepipe Steel With Enhanced Sulfide Stress Cracking Resistance
Publication number
20230392224
Publication date
Dec 7, 2023
ExxonMobil Technology and Engineering Company
Neeraj S. THIRUMALAI
C21 - METALLURGY OF IRON
Information
Patent Application
MARTENSITIC STAINLESS STEEL MATERIAL
Publication number
20230392241
Publication date
Dec 7, 2023
NIPPON STEEL CORPORATION
Daisuke MATSUO
C21 - METALLURGY OF IRON
Information
Patent Application
MARTENSITIC STAINLESS STEEL MATERIAL
Publication number
20230366071
Publication date
Nov 16, 2023
NIPPON STEEL CORPORATION
Toshiya NISHIMURA
C21 - METALLURGY OF IRON
Information
Patent Application
NON-MAGNETIC AUSTENITIC STAINLESS STEEL MATERIAL AND PRODUCTION MET...
Publication number
20230366072
Publication date
Nov 16, 2023
DAIDO STEEL CO., LTD.
Chihiro FURUSHO
C21 - METALLURGY OF IRON
Information
Patent Application
Method of Manufacturing High Strength Steel Tubing from a Steel Com...
Publication number
20230357876
Publication date
Nov 9, 2023
Tenaris Connections B.V.
Matteo Ortolani
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL AND STEEL COMPONENT
Publication number
20230193414
Publication date
Jun 22, 2023
JFE STEEL CORPORATION
Naoya IHARA
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
MULTI-THICKNESS WELDED VEHICLE STRUCTURE
Publication number
20230183831
Publication date
Jun 15, 2023
MULTIMATIC INC.
Mark Sullivan
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
High Strength, High-Temperature Corrosion Resistant Martensitic Sta...
Publication number
20230167522
Publication date
Jun 1, 2023
Baoshan Iron & Steel Co., Ltd
Chunxia ZHANG
C21 - METALLURGY OF IRON
Information
Patent Application
MARTENSITIC STAINLESS STEEL MATERIAL AND METHOD FOR PRODUCING MARTE...
Publication number
20230109773
Publication date
Apr 13, 2023
NIPPON STEEL CORPORATION
Yusaku TOMIO
C21 - METALLURGY OF IRON
Information
Patent Application
STAINLESS STEEL SEAMLESS PIPE FOR OIL COUNTRY TUBULAR GOODS AND MET...
Publication number
20230107887
Publication date
Apr 6, 2023
JFE STEEL CORPORATION
Mami Endo
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-STRENGTH SEAMLESS STEEL PIPE AND METHOD FOR MANUFACTURING SAME
Publication number
20230055650
Publication date
Feb 23, 2023
JFE STEEL CORPORATION
Mitsuhiro Okatsu
C21 - METALLURGY OF IRON
Information
Patent Application
STAINLESS STEEL SEAMLESS PIPE AND METHOD FOR MANUFACTURING STAINLES...
Publication number
20230048685
Publication date
Feb 16, 2023
JFE STEEL CORPORATION
Yuichi Kamo
C21 - METALLURGY OF IRON
Information
Patent Application
SEAMLESS STEEL PIPE HAVING DESIRABLE SULFURIC ACID DEW-POINT CORROS...
Publication number
20220411890
Publication date
Dec 29, 2022
JFE STEEL CORPORATION
Masao Yuga
C21 - METALLURGY OF IRON
Information
Patent Application
ELECTRIC RESISTANCE WELDED STEEL PIPE, METHOD FOR PRODUCING THE SAM...
Publication number
20220373108
Publication date
Nov 24, 2022
JFE STEEL CORPORATION
Akihide Matsumoto
C21 - METALLURGY OF IRON
Information
Patent Application
SEAMLESS STEEL PIPE HAVING DESIRABLE SULFURIC ACID DEW-POINT CORROS...
Publication number
20220364671
Publication date
Nov 17, 2022
JFE STEEL CORPORATION
Hiroyuki Takai
C21 - METALLURGY OF IRON
Information
Patent Application
STAINLESS STEEL SEAMLESS PIPE AND METHOD FOR MANUFACTURING SAME
Publication number
20220349036
Publication date
Nov 3, 2022
JFE STEEL CORPORATION
Yuichi KAMO
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL MATERIAL FOR LINE PIPES, METHOD FOR PRODUCING THE SAME, LINE...
Publication number
20220220574
Publication date
Jul 14, 2022
JFE STEEL CORPORATION
Kyono Yasuda
C21 - METALLURGY OF IRON
Information
Patent Application
COOLING DEVICE FOR SEAMLESS STEEL PIPES
Publication number
20220213570
Publication date
Jul 7, 2022
SMS group GMBH
Torsten MÜLLER
C21 - METALLURGY OF IRON
Information
Patent Application
Unknown
Publication number
20220195551
Publication date
Jun 23, 2022
BENTELER STEEL/TUBE GMBH
Jayaram Dadda
C21 - METALLURGY OF IRON
Information
Patent Application
STAINLESS STEEL SEAMLESS PIPE
Publication number
20220177990
Publication date
Jun 9, 2022
JFE STEEL CORPORATION
Yuichi KAMO
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL PIPE FOR FUEL INJECTION PIPE, AND FUEL INJECTION PIPE USING SAME
Publication number
20220112572
Publication date
Apr 14, 2022
NIPPON STEEL CORPORATION
Taizo MAKINO
C21 - METALLURGY OF IRON
Information
Patent Application
MARTENSITIC STAINLESS STEEL SEAMLESS PIPE FOR OIL COUNTRY TUBULAR G...
Publication number
20220074009
Publication date
Mar 10, 2022
JFE STEEL CORPORATION
Mami ENDO
C21 - METALLURGY OF IRON
Information
Patent Application
MARTENSITIC STAINLESS SEAMLESS STEEL PIPE
Publication number
20220033943
Publication date
Feb 3, 2022
NIPPON STEEL CORPORATION
Kyohei KANKI
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT
Publication number
20210371961
Publication date
Dec 2, 2021
NIPPON STEEL CORPORATION
Shinji YOSHIDA
C21 - METALLURGY OF IRON