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C21D6/004
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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
C21D6/00
Heat treatment of ferrous alloys
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C21D6/004
containing Cr and Ni
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last 30 patents
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Patent Grant
Oil ring wire
Patent number
12,365,959
Issue date
Jul 22, 2025
Tokusen Kogyo Co., Ltd.
Miho Fujino
C21 - METALLURGY OF IRON
Information
Patent Grant
Drill string component with high corrosion resistance, and method f...
Patent number
12,365,960
Issue date
Jul 22, 2025
Voestalpine BOHLER Edelstahl GmbH & Co.
Rainer Fluch
C21 - METALLURGY OF IRON
Information
Patent Grant
Systems and methods for corrosion resistant stainless steel coatings
Patent number
12,365,991
Issue date
Jul 22, 2025
Allium Engineering, Inc.
Samuel McAlpine
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Rod-shaped electromagnetic stainless steel material
Patent number
12,359,292
Issue date
Jul 15, 2025
NIPPON STEEL STAINLESS STEEL CORPORATION
Shota Yamasaki
C21 - METALLURGY OF IRON
Information
Patent Grant
Stainless steel pipe and method for manufacturing same
Patent number
12,359,752
Issue date
Jul 15, 2025
JFE Steel Corporation
Shunsuke Sasaki
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
High-strength high-toughness and wear-resistant composite steel pla...
Patent number
12,359,272
Issue date
Jul 15, 2025
Baoshan Iron & Steel Co., Ltd.
Hongbin Li
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet and method for producing same
Patent number
12,354,778
Issue date
Jul 8, 2025
JFE Steel Corporation
Makoto Watanabe
C21 - METALLURGY OF IRON
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Patent Grant
Coated steel sheet
Patent number
12,351,886
Issue date
Jul 8, 2025
Arcelormittal
Tiago Machado Amorim
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
Hot dip galvanized ultra-high strength steel sheets with high flatness
Patent number
12,344,915
Issue date
Jul 1, 2025
GM Global Technology Operations LLC
Zhou Wang
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Patent Grant
Integrated high throughput cold spray coating manufacturing system
Patent number
12,344,937
Issue date
Jul 1, 2025
Allium Engineering, Inc.
Samuel McAlpine
B22 - CASTING POWDER METALLURGY
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Patent Grant
Duplex stainless steel, seamless steel pipe or tube, and a method o...
Patent number
12,344,910
Issue date
Jul 1, 2025
JFE Steel Corporation
Yusuke Yoshimura
C21 - METALLURGY OF IRON
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Patent Grant
Steel sheet and manufacturing method thereof
Patent number
12,344,912
Issue date
Jul 1, 2025
Nippon Steel Corporation
Yuya Suzuki
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Patent Grant
Ultra-high strength alloy
Patent number
12,338,502
Issue date
Jun 24, 2025
CRS HOLDINGS, LLC
Paul M. Novotny
C21 - METALLURGY OF IRON
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Patent Grant
Cold rolled heat treated steel sheet and a method of manufacturing...
Patent number
12,338,506
Issue date
Jun 24, 2025
Arcelormittal
Jean-Marc Pipard
C21 - METALLURGY OF IRON
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Patent Grant
Method of making an interaxle differential unit and an annular case
Patent number
12,331,820
Issue date
Jun 17, 2025
ArvinMeritor Technology, LLC
Joseph Melekian
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent Grant
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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Steel compositions, methods of manufacture and uses in producing ri...
Patent number
12,331,372
Issue date
Jun 17, 2025
Greer Steel Company
Douglas B. Campbell
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent Grant
Thin steel sheet and method for manufacturing same
Patent number
12,331,374
Issue date
Jun 17, 2025
JFE Steel Corporation
Noriaki Kohsaka
C21 - METALLURGY OF IRON
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Patent Grant
Hot-rolled steel sheet with excellent low-temperature impact toughn...
Patent number
12,312,648
Issue date
May 27, 2025
POSCO Co., Ltd
Jung Hyun Kong
C21 - METALLURGY OF IRON
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Patent Grant
High strength hot rolled steel having excellent scale adhesivness a...
Patent number
12,297,514
Issue date
May 13, 2025
Arcelormittal
Eva Diaz Gonzalez
C21 - METALLURGY OF IRON
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Patent Grant
High strength stainless steel material
Patent number
12,291,767
Issue date
May 6, 2025
Halliburton Energy Services, Inc.
Karthik Krishnan
C21 - METALLURGY OF IRON
Information
Patent Grant
High-carbon hot-rolled steel sheet and method for manufacturing the...
Patent number
12,286,681
Issue date
Apr 29, 2025
JFE Steel Corporation
Yuka Miyamoto
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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Patent Grant
Frog for switches and crossings
Patent number
12,270,157
Issue date
Apr 8, 2025
VOSSLOH COGIFER
Francesco Barresi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent Grant
Duplex stainless steel and method for manufacturing same, and duple...
Patent number
12,264,376
Issue date
Apr 1, 2025
JFE Steel Corporation
Kazuki Fujimura
C21 - METALLURGY OF IRON
Information
Patent Grant
High-strength steel sheet and method for producing same
Patent number
12,258,646
Issue date
Mar 25, 2025
JFE Steel Corporation
Hidekazu Minami
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method for producing thermo-mechanically produced profiled hot-roll...
Patent number
12,258,648
Issue date
Mar 25, 2025
voestapline Stahl GmbH
Wolfgang Ernst
C21 - METALLURGY OF IRON
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Patent Grant
Hot-rolled steel sheet having excellent impact resistance, steel pi...
Patent number
12,258,657
Issue date
Mar 25, 2025
POSCO Co., Ltd
Hwan-Goo Seong
C21 - METALLURGY OF IRON
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Patent Grant
Steel sheet and method for producing same
Patent number
12,247,263
Issue date
Mar 11, 2025
Nippon Steel Corporation
Kohichi Sano
C21 - METALLURGY OF IRON
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Patent Grant
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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last 30 patents
Information
Patent Application
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Publication number
20250236956
Publication date
Jul 24, 2025
Allium Engineering, Inc.
Samuel McAlpine
B22 - CASTING POWDER METALLURGY
Information
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
Information
Patent Application
HOT-STAMPED COMPONENT HAVING HIGH COLD-BENDING PERFORMANCE AND HIGH...
Publication number
20250215519
Publication date
Jul 3, 2025
Baoshan Iron & Steel Co., Ltd
Ning TAN
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
TWIP STEEL SHEET HAVING AN AUSTENITIC MATRIX
Publication number
20250207216
Publication date
Jun 26, 2025
ARCELORMITTAL
Colin SCOTT
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF PRODUCING SAME
Publication number
20250179601
Publication date
Jun 5, 2025
JFE STEEL CORPORATION
Yoshiaki ZAIZEN
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-Ni ALLOY THICK STEEL PLATE HAVING EXCELLENT WELD HIGH-TEMPERAT...
Publication number
20250171870
Publication date
May 29, 2025
NIPPON STEEL STAINLESS STEEL CORPORATION
Yukihiro NISHIDA
C21 - METALLURGY OF IRON
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
Information
Patent Application
STEEL PLATE FOR HIGH HEAT INPUT WELDING AND MANUFACTURING METHOD TH...
Publication number
20250163555
Publication date
May 22, 2025
Zhangjiagang Rongsheng Special Steel Co. Ltd.
Yu ZHANG
B22 - CASTING POWDER METALLURGY
Information
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
Information
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
Information
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
Information
Patent Application
AUSTENITIC STAINLESS STEEL AND METHOD OF MANUFACTURING AUSTENITIC S...
Publication number
20250146098
Publication date
May 8, 2025
NIPPON STEEL CORPORATION
Kana JOTOKU
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-STRENGTH HOT DIP-COATED STEEL STRIP WITH PLASTICITY BROUGHT AB...
Publication number
20250146097
Publication date
May 8, 2025
SALZGITTER FLACHSTAHL GMBH
Konstantin Molodov
B32 - LAYERED PRODUCTS
Information
Patent Application
ULTRA-HIGH STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT HOLE-E...
Publication number
20250137085
Publication date
May 1, 2025
POSCO CO., LTD.
Min-Seo KOO
C21 - METALLURGY OF IRON
Information
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
Information
Patent Application
HIGH-STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Publication number
20250137084
Publication date
May 1, 2025
JFE STEEL CORPORATION
Yusuke Wada
C21 - METALLURGY OF IRON
Information
Patent Application
ULTRA-HIGH-STRENGTH REINFORCING BAR AND MANUFACTURING METHOD THEREOF
Publication number
20250129446
Publication date
Apr 24, 2025
HYUNDAI STEEL COMPANY
Jun Ho Chung
C21 - METALLURGY OF IRON
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING...
Publication number
20250118468
Publication date
Apr 10, 2025
NIPPON STEEL CORPORATION
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C21 - METALLURGY OF IRON
Information
Patent Application
HOT-ROLLED STEEL SHEET
Publication number
20250109467
Publication date
Apr 3, 2025
NIPPON STEEL CORPORATION
Daisuke ITO
C21 - METALLURGY OF IRON
Information
Patent Application
ULTRA-FINE GRAINED STEELS HAVING CORROSION-FATIGUE RESISTANCE
Publication number
20250109465
Publication date
Apr 3, 2025
Tenaris Connections B.V.
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C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF PRODUCING HOT-ROLLED STEEL SHEET FOR NON-ORIENTED ELECTRI...
Publication number
20250101541
Publication date
Mar 27, 2025
JFE STEEL CORPORATION
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B22 - CASTING POWDER METALLURGY
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF PRODUCING SAME
Publication number
20250101542
Publication date
Mar 27, 2025
JFE STEEL CORPORATION
Yoshiaki ZAIZEN
C21 - METALLURGY OF IRON
Information
Patent Application
HOT STAMPED BODY
Publication number
20250084518
Publication date
Mar 13, 2025
NIPPON STEEL CORPORATION
Hitomi NISHIBATA
B22 - CASTING POWDER METALLURGY
Information
Patent Application
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Publication number
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Publication date
Mar 13, 2025
Proterial, Ltd.
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C21 - METALLURGY OF IRON
Information
Patent Application
PRESS HARDENING STEEL (PHS) WELDED BLANKS WITH ENHANCED TOUGHNESS
Publication number
20250075282
Publication date
Mar 6, 2025
GM GLOBAL TECHNOLOGY OPERATIONS LLC
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
STAINLESS STEEL AND MANUFACTURING METHOD THEREFOR, AND STAINLESS ST...
Publication number
20250075302
Publication date
Mar 6, 2025
Proterial, Ltd.
Kentaro FUKUMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL SHEET AND METHOD OF PRODUCTION OF SAME
Publication number
20250075283
Publication date
Mar 6, 2025
NIPPON STEEL CORPORATION
Kengo TAKEDA
C21 - METALLURGY OF IRON
Information
Patent Application
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Publication number
20250075301
Publication date
Mar 6, 2025
GM GLOBAL TECHNOLOGY OPERATIONS LLC
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...