Membership
Tour
Register
Log in
Cooling or quenching
Follow
Industry
CPC
C21D9/085
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
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
Current Industry
C21D9/085
Cooling or quenching
Industries
Overview
Organizations
People
Information
Impact
Please log in for detailed analytics
Patents Grants
last 30 patents
Information
Patent Grant
Seamless steel pipe having desirable sulfuric acid dew-point corros...
Patent number
12,129,954
Issue date
Oct 29, 2024
JFE Steel Corporation
Hiroyuki Takai
C21 - METALLURGY OF IRON
Information
Patent Grant
Stainless steel seamless pipe
Patent number
12,098,438
Issue date
Sep 24, 2024
JFE Steel Corporation
Yuichi Kamo
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel material and method for producing steel material
Patent number
12,054,798
Issue date
Aug 6, 2024
Nippon Steel Corporation
Yuji Arai
C21 - METALLURGY OF IRON
Information
Patent Grant
Seamless steel pipe and method for producing the same
Patent number
12,043,885
Issue date
Jul 23, 2024
Nippon Steel Corporation
Daisuke Matsuo
C21 - METALLURGY OF IRON
Information
Patent Grant
Electric resistance welded steel pipe or tube
Patent number
12,037,655
Issue date
Jul 16, 2024
JFE Steel Corporation
Masatoshi Aratani
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for manufacturing torsion beam
Patent number
12,036,600
Issue date
Jul 16, 2024
POSCO Co., Ltd
Hong-Woo Lee
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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...
Patents Applications
last 30 patents
Information
Patent Application
STEEL PIPE FOR OIL CYLINDER AND MANUFACTURING METHOD THEREFOR
Publication number
20250012382
Publication date
Jan 9, 2025
Baoshan Iron & Steel Co., Ltd
Wen Sun
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-STRENGTH SEAMLESS STAINLESS STEEL PIPE FOR OIL WELLS
Publication number
20250003042
Publication date
Jan 2, 2025
JFE STEEL CORPORATION
Kenichiro Eguchi
C21 - METALLURGY OF IRON
Information
Patent Application
MARTENSITIC STAINLESS STEEL SEAMLESS PIPE AND METHOD FOR PRODUCING...
Publication number
20240417835
Publication date
Dec 19, 2024
NIPPON STEEL CORPORATION
Kyohei KANKI
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-STRENGTH STAINLESS SEAMLESS STEEL PIPE FOR OIL WELLS AND METHO...
Publication number
20240410499
Publication date
Dec 12, 2024
JFE STEEL CORPORATION
Kenichiro Eguchi
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL PIPE FOR LINE PIPE WITH EXCELLENT LOW TEMPERATURE TOUGHNESS O...
Publication number
20240390967
Publication date
Nov 28, 2024
NEXTEEL Co., Ltd.
Yi-Yong KIM
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
CORROSION-RESISTANT AND HIGH TOUGHNESS OIL CASING AND METHOD FOR MA...
Publication number
20240352564
Publication date
Oct 24, 2024
DALIPAL PIPE COMPANY
Kui WANG
C21 - METALLURGY OF IRON
Information
Patent Application
CONTINUOUS HEATING DEVICE AND CONTINUOUS HEATING METHOD
Publication number
20240263264
Publication date
Aug 8, 2024
Metal Industries Research & Development Centre
Yi-San CHANG
C21 - METALLURGY OF IRON
Information
Patent Application
SEAMLESS STEEL TUBE RESISTANT TO CARBON DIOXIDE CORROSION AND MANUF...
Publication number
20240247350
Publication date
Jul 25, 2024
Baoshan Iron & Steel Co., Ltd
Suzhen Luo
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF FORMING AND HEAT TREATING COILED TUBING
Publication number
20240247351
Publication date
Jul 25, 2024
TENARIS COILED TUBES, LLC
Martin Valdez
C21 - METALLURGY OF IRON
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
ELECTRIC RESISTANCE WELDED STEEL PIPE FOR MECHANICAL STRUCTURAL COM...
Publication number
20240218492
Publication date
Jul 4, 2024
NIPPON STEEL CORPORATION
Yusaku TOMIO
C21 - METALLURGY OF IRON
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