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C21D6/005
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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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C21D6/005
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Patents Grants
last 30 patents
Information
Patent Grant
Method for manufacturing a grain-oriented electrical steel sheet
Patent number
12,325,892
Issue date
Jun 10, 2025
JFE Steel Corporation
Yasuyuki Hayakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Hot rolled steel sheet and a method of manufacturing thereof
Patent number
12,325,889
Issue date
Jun 10, 2025
Arcelormittal
Sujay Sarkar
C21 - METALLURGY OF IRON
Information
Patent Grant
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
Information
Patent Grant
Material for hot stamping and method of manufacturing the same
Patent number
12,312,652
Issue date
May 27, 2025
Hyundai Steel Company
Nu Ri Shin
C21 - METALLURGY OF IRON
Information
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
Information
Patent Grant
Oriented electrical steel sheet and manufacturing method therefor
Patent number
12,312,651
Issue date
May 27, 2025
POSCO Co., Ltd
Hyun Jong Kim
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel plate for pressure vessel with excellent cryogenic lateral ex...
Patent number
12,305,250
Issue date
May 20, 2025
Posco
Soon-Taik Hong
C21 - METALLURGY OF IRON
Information
Patent Grant
Plated steel sheet having excellent strength, formability and surfa...
Patent number
12,305,287
Issue date
May 20, 2025
POSCO Co., Ltd
Yong-Hoon Choi
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel sheet and manufacturing method thereof
Patent number
12,305,258
Issue date
May 20, 2025
Nippon Steel Corporation
Eriko Tsukamoto
C21 - METALLURGY OF IRON
Information
Patent Grant
Electrical steel sheet and method for manufacturing same
Patent number
12,305,253
Issue date
May 20, 2025
Nippon Steel Corporation
Miho Tomita
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing grain-oriented electrical steel sheet
Patent number
12,305,255
Issue date
May 20, 2025
JFE Steel Corporation
Yuiko Ehashi
C21 - METALLURGY OF IRON
Information
Patent Grant
High-strength structural steel having excellent cold bendability, a...
Patent number
12,305,249
Issue date
May 20, 2025
POSCO Co., Ltd
Jae-Young Cho
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet
Patent number
12,305,252
Issue date
May 20, 2025
Nippon Steel Corporation
Shinsuke Takatani
C21 - METALLURGY OF IRON
Information
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
Information
Patent Grant
Steel sheet, member, and method for producing them
Patent number
12,297,515
Issue date
May 13, 2025
JFE Steel Corporation
Yoshiyasu Kawasaki
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel for hot stamping, hot stamping process and hot stamped component
Patent number
12,297,517
Issue date
May 13, 2025
Ironovation Materials Technology Co., Ltd.
Hongliang Yi
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing grain-oriented electrical steel sheet
Patent number
12,291,758
Issue date
May 6, 2025
JFE Steel Corporation
Yuiko Ehashi
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel sheet and manufacturing method thereof
Patent number
12,291,759
Issue date
May 6, 2025
Nippon Steel Corporation
Yuya Suzuki
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
Information
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...
Information
Patent Grant
Method of producing high-strength hot-dip galvanized steel sheet
Patent number
12,276,006
Issue date
Apr 15, 2025
JFE Steel Corporation
Shunsuke Yamamoto
C21 - METALLURGY OF IRON
Information
Patent Grant
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
Information
Patent Grant
Galvanized steel sheet, electrodeposition-coated steel sheet, autom...
Patent number
12,276,028
Issue date
Apr 15, 2025
JFE Steel Corporation
Shunsuke Yamamoto
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Non-oriented electrical steel sheet and manufacturing method therefor
Patent number
12,272,474
Issue date
Apr 8, 2025
POSCO Co., Ltd
Jaewan Hong
C21 - METALLURGY OF IRON
Information
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
Information
Patent Grant
Plated steel sheets for hot press forming having excellent hydrogen...
Patent number
12,269,081
Issue date
Apr 8, 2025
POSCO CO., LTD
Sang-Heon Kim
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Steel sheet and method for manufacturing same
Patent number
12,270,088
Issue date
Apr 8, 2025
Nippon Steel Corporation
Eriko Tsukamoto
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method for producing a welded steel blank and associated welded blank
Patent number
12,269,533
Issue date
Apr 8, 2025
Arcelormittal
Cristian Alvarez
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
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
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
Patents Applications
last 30 patents
Information
Patent Application
Non-Oriented Electrical Steel Sheet And Method For Producing Same
Publication number
20250188562
Publication date
Jun 12, 2025
POSCO Co., Ltd
June Soo Park
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
PROCESS FOR MANUFACTURING A FLAT STEEL PRODUCT HAVING AN ALUMINUM-B...
Publication number
20250179600
Publication date
Jun 5, 2025
ThyssenKrupp Steel Europe AG
Janko BANIK
C21 - METALLURGY OF IRON
Information
Patent Application
MECHANICAL STRUCTURAL PART AND METHOD FOR MANUFACTURING SAME
Publication number
20250179599
Publication date
Jun 5, 2025
JFE STEEL CORPORATION
Tomoki OTSUKA
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL SHEET, MEMBER, AND METHODS OF PRODUCING SAME
Publication number
20250179603
Publication date
Jun 5, 2025
JFE STEEL CORPORATION
Shimpei YOSHIOKA
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
CONTINUOUS ANNEALING LINE, CONTINUOUS HOT-DIP GALVANIZING LINE, AND...
Publication number
20250171872
Publication date
May 29, 2025
JFE STEEL CORPORATION
Kazuki ENDOH
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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 SHEET AND MANUFACTURING METHOD THEREFOR
Publication number
20250163585
Publication date
May 22, 2025
POSCO CO., LTD
Kang-Min Lee
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL PLATE AND METHOD OF PRODUCING SAME
Publication number
20250154632
Publication date
May 15, 2025
JFE STEEL CORPORATION
Kyono YASUDA
C21 - METALLURGY OF IRON
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
HOT PRESS-FORMED PART AND MANUFACTURING METHOD THEREOF
Publication number
20250153234
Publication date
May 15, 2025
POSCO CO., LTD
Sang-Heon Kim
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
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
Information
Patent Application
ZINC-PLATED STEEL SHEET AND METHOD FOR PRODUCING SAME
Publication number
20250154633
Publication date
May 15, 2025
NIPPON STEEL CORPORATION
Yusuke TSUNEMI
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF PRODUCTION OF SAME
Publication number
20250157708
Publication date
May 15, 2025
NIPPON STEEL CORPORATION
Masato YASUDA
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING THE SAME
Publication number
20250146093
Publication date
May 8, 2025
JFE STEEL CORPORATION
Tomoyuki OKUBO
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
COLD-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Publication number
20250146094
Publication date
May 8, 2025
NIPPON STEEL CORPORATION
Takuya NISHIO
C21 - METALLURGY OF IRON
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
NON-ORIENTED ELECTRICAL STEEL SHEET, MOTOR CORE, METHOD FOR MANUFAC...
Publication number
20250140456
Publication date
May 1, 2025
NIPPON STEEL CORPORATION
Ichiro TANAKA
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
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
Information
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
Information
Patent Application
STEEL MATERIAL FOR HOT FORMING, HOT FORMED PART, AND METHOD FOR MAN...
Publication number
20250137086
Publication date
May 1, 2025
POSCO CO., LTD
Sea-Woong Lee
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