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Hardening Quenching with or without subsequent tempering
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C21D1/18
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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
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General methods or devices for heat treatments
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C21D1/18
Hardening Quenching with or without subsequent tempering
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last 30 patents
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Oil ring wire
Patent number
12,365,959
Issue date
Jul 22, 2025
Tokusen Kogyo Co., Ltd.
Miho Fujino
C21 - METALLURGY OF IRON
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Patent Grant
Hot-stamping formed body
Patent number
12,358,036
Issue date
Jul 15, 2025
Nippon Steel Corporation
Yuri Toda
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
Method of manufacturing clad steel sheet having excellent formabili...
Patent number
12,358,274
Issue date
Jul 15, 2025
POSCO Co., Ltd
Tae-Jin Song
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent Grant
Method for manufacturing steel sheet for cold press and method for...
Patent number
12,359,276
Issue date
Jul 15, 2025
JFE Steel Corporation
Kinya Nakagawa
C21 - METALLURGY OF IRON
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Patent Grant
Cold-rolling strip steel with strength and hardness thereof varying...
Patent number
12,351,887
Issue date
Jul 8, 2025
Baoshan Iron & Steel Co., Ltd.
Xiaodong Zhu
C21 - METALLURGY OF IRON
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Patent Grant
Method for producing hardened steel components with a conditioned z...
Patent number
12,344,914
Issue date
Jul 1, 2025
voestalpine STAHL GmbH
Ernst Schachinger
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Patent Grant
Stainless steel and a cutting tool body made of the stainless steel
Patent number
12,338,517
Issue date
Jun 24, 2025
Uddeholms AB
Staffan Gunnarsson
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent Grant
Steel sheet, member, and methods for producing the same
Patent number
12,338,505
Issue date
Jun 24, 2025
JFE Steel Corporation
Takuya Hirashima
C21 - METALLURGY OF IRON
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Patent Grant
Ultra-thick steel excellent in brittle crack arrestability and manu...
Patent number
12,338,515
Issue date
Jun 24, 2025
POSCO Co., Ltd
Hak-Cheol Lee
C21 - METALLURGY OF IRON
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Fastening structures with high coefficient of thermal expansion for...
Patent number
12,331,698
Issue date
Jun 17, 2025
Brunswick Corporation
Daniel P. Hoffman
C21 - METALLURGY OF IRON
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Method for producing conventionally hot-rolled profiled strip products
Patent number
12,331,369
Issue date
Jun 17, 2025
voestalpine STAHL GmbH
Wolfgang Ernst
C21 - METALLURGY OF IRON
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Patent Grant
Cold-rolled steel sheet and manufacturing method thereof
Patent number
12,331,379
Issue date
Jun 17, 2025
Nippon Steel Corporation
Takuya Nishio
C21 - METALLURGY OF IRON
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Steel sheet and high strength press hardened steel part having exce...
Patent number
12,312,647
Issue date
May 27, 2025
Arcelormittal
Alice Dumont
C21 - METALLURGY OF IRON
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Heat treatment method for tubular shaft for drive shaft having ball...
Patent number
12,305,251
Issue date
May 20, 2025
ERAE AMS CO., LTD.
Se Jung Park
C21 - METALLURGY OF IRON
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Patent Grant
Extra thick hot rolled h section steel and production method therefor
Patent number
12,281,369
Issue date
Apr 22, 2025
MAANSHAN IRON & STEEL CO., LTD.
Meng Xia
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Press hardening method
Patent number
12,281,366
Issue date
Apr 22, 2025
Arcelormittal
Raisa Grigorieva
C21 - METALLURGY OF IRON
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Scallop-resistant track link and method of making same
Patent number
12,275,468
Issue date
Apr 15, 2025
Caterpillar Inc.
Kevin Steiner
C21 - METALLURGY OF IRON
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Method of heat treating a high strength steel and a product obtaine...
Patent number
12,276,003
Issue date
Apr 15, 2025
Ironovation Materials Technology Co., Ltd.
Hongliang Yi
C21 - METALLURGY OF IRON
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Patent Grant
Torque transfer member having a strengthened fluid port and method...
Patent number
12,276,332
Issue date
Apr 15, 2025
GM Global Technology Operations LLC
Shun Xun Zhang
C21 - METALLURGY OF IRON
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Steel wire rod having excellent spheroidizing heat treatment proper...
Patent number
12,264,379
Issue date
Apr 1, 2025
Posco
Sang-Yoon Lee
C21 - METALLURGY OF IRON
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Method of induction-hardening a rolling-element bearing ring
Patent number
12,258,642
Issue date
Mar 25, 2025
Aktiebolaget SKF
Klaus Pedrotti
C21 - METALLURGY OF IRON
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Steel sheet, member, and methods for manufacturing the same
Patent number
12,258,647
Issue date
Mar 25, 2025
JFE Steel Corporation
Yusuke Wada
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Patent Grant
Drill tool and method for producing same
Patent number
12,252,757
Issue date
Mar 18, 2025
Furukawa Rock Drill Co., Ltd.
Yoshimi Matsumoto
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Combined casting and rolling installation and method for operating...
Patent number
12,246,365
Issue date
Mar 11, 2025
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Axel Rimnac
B22 - CASTING POWDER METALLURGY
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Method for manufacturing an austenitic steel component and use of t...
Patent number
12,241,139
Issue date
Mar 4, 2025
OUTOKUMPU OYJ
Thomas Fröhlich
C21 - METALLURGY OF IRON
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Patent Grant
Razor blade and composition for a razor blade
Patent number
12,240,136
Issue date
Mar 4, 2025
Edgewell Personal Care Brands, LLC
William Salvatore
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
Martensitic stainless steel seamless pipe for oil country tubular g...
Patent number
12,234,525
Issue date
Feb 25, 2025
JFE Steel Corporation
Mami Endo
C21 - METALLURGY OF IRON
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Steel plate for pressure vessel with excellent cryogenic toughness...
Patent number
12,234,526
Issue date
Feb 25, 2025
POSCO HOLDINGS INC.
Soon-Taik Hong
C21 - METALLURGY OF IRON
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Patent Grant
Steel
Patent number
12,227,817
Issue date
Feb 18, 2025
Nippon Steel Corporation
Shinichiro Tabata
C21 - METALLURGY OF IRON
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Patent Grant
Martensitic stainless steel seamless pipe for oil country tubular g...
Patent number
12,221,663
Issue date
Feb 11, 2025
JFE Steel Corporation
Mami Endo
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
Method and Device for Producing Hardened Sheet-Steel Components
Publication number
20250230516
Publication date
Jul 17, 2025
voestalpine Metal Forming GmbH
Tobias HÄGELE
C21 - METALLURGY OF IRON
Information
Patent Application
QUENCHING METHOD AND QUENCHING DEVICE
Publication number
20250230517
Publication date
Jul 17, 2025
NSK LTD.
Nobuyuki HAGIWARA
C21 - METALLURGY OF IRON
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Patent Application
STEEL MATERIAL
Publication number
20250215544
Publication date
Jul 3, 2025
NIPPON STEEL CORPORATION
Mikiko NOGUCHI
C21 - METALLURGY OF IRON
Information
Patent Application
MARTENSITIC STAINLESS STEEL MATERIAL
Publication number
20250215546
Publication date
Jul 3, 2025
NIPPON STEEL CORPORATION
Toshiya NISHIMURA
C21 - METALLURGY OF IRON
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Patent Application
SCALLOP-RESISTANT TRACK LINK AND METHOD OF MAKING SAME
Publication number
20250214660
Publication date
Jul 3, 2025
Caterpillar Inc.
Kevin Steiner
C21 - METALLURGY OF IRON
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Patent Application
Solid State Quenching of Metal
Publication number
20250207212
Publication date
Jun 26, 2025
Hardwire, LLC
George C. TUNIS III
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
HIGH-STRENGTH STEEL SHEET AND METHOD FOR PRODUCING THE SAME
Publication number
20250207215
Publication date
Jun 26, 2025
JFE STEEL CORPORATION
Kohei KAWAZOME
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL PLATE AND METHOD OF PRODUCING SAME
Publication number
20250207232
Publication date
Jun 26, 2025
JFE STEEL CORPORATION
Yuya SATO
C21 - METALLURGY OF IRON
Information
Patent Application
HOT ROLLED STEEL SHEET HAVING EXCELLENT COLD BENDABILITY AFTER HEAT...
Publication number
20250197981
Publication date
Jun 19, 2025
POSCO CO., LTD
Hwan-Goo Seong
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET
Publication number
20250197984
Publication date
Jun 19, 2025
JFE STEEL CORPORATION
Shunsuke YAMAMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME
Publication number
20250197959
Publication date
Jun 19, 2025
JFE STEEL CORPORATION
Junya Tobata
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL PLATE AND METHOD OF PRODUCING SAME
Publication number
20250197980
Publication date
Jun 19, 2025
JFE STEEL CORPORATION
Yuya SATO
C21 - METALLURGY OF IRON
Information
Patent Application
SCALLOP-RESISTANT TRACK LINK AND METHOD OF MAKING SAME
Publication number
20250196951
Publication date
Jun 19, 2025
Caterpillar Inc.
Kevin Steiner
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING TUBULAR COATING-FREE PRESS-HARDENED STEEL
Publication number
20250197958
Publication date
Jun 19, 2025
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Shane Michael ANDERSON
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME
Publication number
20250197979
Publication date
Jun 19, 2025
JFE STEEL CORPORATION
Junya Tobata
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL SHEET, MEMBER, AND METHODS OF PRODUCING SAME
Publication number
20250179602
Publication date
Jun 5, 2025
JFE STEEL CORPORATION
Shimpei YOSHIOKA
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL SHEET, MEMBER, METHODS FOR MANUFACTURING THE SAME, METHOD FOR...
Publication number
20250171869
Publication date
May 29, 2025
JFE STEEL CORPORATION
Shinsuke KOMINE
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
High Strength, Cold Rolled Steel With Reduced Sensitivity to Hydrog...
Publication number
20250171871
Publication date
May 29, 2025
ThyssenKrupp Steel Europe AG
Richard G. Thiessen
C21 - METALLURGY OF IRON
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Patent Application
STEEL SHEET, MEMBER, METHODS FOR MANUFACTURING THE SAME, METHOD FOR...
Publication number
20250163531
Publication date
May 22, 2025
JFE STEEL CORPORATION
Shinsuke KOMINE
C21 - METALLURGY OF IRON
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Patent Application
APPARATUS AND METHOD FOR PREPARING HOT STAMPED PART
Publication number
20250153235
Publication date
May 15, 2025
SUZHOU PRESSLER TECHNOLOGIES CO., LTD.
Jian AN
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Application
STEEL PLATE FOR ADVANCED NUCLEAR POWER UNIT REACTOR CORE SHELL CYLI...
Publication number
20250154617
Publication date
May 15, 2025
ANGANG STEEL COMPANY LIMITED
Chu WANG
C21 - METALLURGY OF IRON
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Patent Application
STEEL PLATE FOR PRESSURE VESSEL WITH EXCELLENT CRYOGENIC TOUGHNESS...
Publication number
20250154620
Publication date
May 15, 2025
POSCO CO., LTD.
Soon-Taik Hong
C21 - METALLURGY OF IRON
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Patent Application
STAINLESS STEEL FORMULATION FOR PUMP COMPONENTS
Publication number
20250154634
Publication date
May 15, 2025
SPM OIL & GAS INC.
Jacob Bayyouk
C21 - METALLURGY OF IRON
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Patent Application
PARAMAGNETIC HARD STAINLESS STEEL AND METHOD FOR MANUFACTURING SAME
Publication number
20250149215
Publication date
May 8, 2025
THE SWATCH GROUP RESEARCH AND DEVELOPMENT LTD
Steve CLERC
H01 - BASIC ELECTRIC ELEMENTS
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Patent Application
ULTRA-HIGH-STRENGTH STAINLESS STEEL AND MANUFACTURING METHOD
Publication number
20250137087
Publication date
May 1, 2025
BEIHANG UNIVERSITY
Jinyan ZHONG
C21 - METALLURGY OF IRON
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Patent Application
STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCE...
Publication number
20250137082
Publication date
May 1, 2025
ARCELORMITTAL
Alice DUMONT
C21 - METALLURGY OF IRON
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Patent Application
STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCE...
Publication number
20250137083
Publication date
May 1, 2025
ARCELORMITTAL
Alice DUMONT
C21 - METALLURGY OF IRON
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Patent Application
TORQUE TRANSFER MEMBER HAVING A STRENGTHENED FLUID PORT AND METHOD...
Publication number
20250137525
Publication date
May 1, 2025
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Shun Xun Zhang
C21 - METALLURGY OF IRON
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Patent Application
METHOD OF MANUFACTURING SPHERICAL METAL ARTICLES
Publication number
20250122588
Publication date
Apr 17, 2025
OBSHCHESTVO S OGRANICHENNOY OTVETSTVENNOSTYU "NPP SISTEMA 48"
Sergey Sergeevich TITOV
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Publication number
20250122591
Publication date
Apr 17, 2025
HYUNDAI STEEL COMPANY
Han Hyuk Cho
C21 - METALLURGY OF IRON