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General methods or devices for heat treatments
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C21D1/00
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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
Current Industry
C21D1/00
General methods or devices for heat treatments
Sub Industries
C21D1/02
Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
C21D1/04
with simultaneous application of supersonic waves, magnetic or electric fields
C21D1/06
Surface hardening
C21D1/08
with flames
C21D1/09
by direct application of electrical or wave energy by particle radiation
C21D1/10
by electric induction
C21D1/18
Hardening Quenching with or without subsequent tempering
C21D1/185
from an intercritical temperature
C21D1/19
by interrupted quenching
C21D1/20
Isothermal quenching
C21D1/22
Martempering
C21D1/25
Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius
C21D1/26
Methods of annealing
C21D1/28
Normalising
C21D1/30
Stress-relieving
C21D1/32
Soft annealing
C21D1/34
Methods of heating
C21D1/38
Heating by cathodic discharges
C21D1/40
Direct resistance heating
C21D1/42
Induction heating
C21D1/44
in heat-treatment baths
C21D1/46
Salt baths
C21D1/48
Metal baths
C21D1/50
Oil baths
C21D1/52
with flames
C21D1/53
Heating in fluidised beds
C21D1/54
Determining when the hardening temperature has been reached by measurement of magnetic or electrical properties
C21D1/55
Hardenability tests
C21D1/56
characterised by the quenching agents
C21D1/58
Oils
C21D1/60
Aqueous agents
C21D1/607
Molten salts
C21D1/613
Gases Liquefied or solidified normally gaseous material
C21D1/62
Quenching devices
C21D1/63
for bath quenching
C21D1/64
with circulating liquids
C21D1/667
for spray quenching
C21D1/673
for die quenching
C21D1/68
Temporary coatings or embedding materials applied before or during heat treatment
C21D1/70
while heating or quenching
C21D1/72
during chemical change of surfaces
C21D1/74
Methods of treatment in inert gas, controlled atmosphere, vacuum, or pulverulent material
C21D1/76
Adjusting the composition of the atmosphere
C21D1/763
using a catalyst
C21D1/767
with forced gas circulation Reheating thereof
C21D1/773
under reduced pressure or vacuum
C21D1/78
Combined heat-treatments not provided for above
C21D1/785
Thermocycling
C21D1/82
Descaling by thermal stresses
C21D1/84
Controlled slow cooling
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last 30 patents
Information
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
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
Hardfaced metal surface and method of manufacture
Patent number
12,366,133
Issue date
Jul 22, 2025
Hydril USA Distribution LLC
Jamie Clay Gamble
C21 - METALLURGY OF IRON
Information
Patent Grant
Casting-rolling system for batch and continuous operation
Patent number
12,358,034
Issue date
Jul 15, 2025
SMS GROUP GMBH
Dieter Rosenthal
B22 - CASTING POWDER METALLURGY
Information
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...
Information
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
Information
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
Information
Patent Grant
Carbonitrided bearing component
Patent number
12,359,268
Issue date
Jul 15, 2025
Nippon Steel Corporation
Yutaka Neishi
C21 - METALLURGY OF IRON
Information
Patent Grant
Electrical steel with low iron loss and method for controlling tens...
Patent number
12,359,269
Issue date
Jul 15, 2025
INNER MONGOLIA UNIVERSITY OF TECHNOLOGY
Lifeng Fan
C21 - METALLURGY OF IRON
Information
Patent Grant
Zinc alloy coated press-hardenable steels and method of manufacturi...
Patent number
12,359,294
Issue date
Jul 15, 2025
Nucor Corporation
Weiping Sun
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Pre-coated steel sheet with aluminum or aluminum alloy pre-coating,...
Patent number
12,359,295
Issue date
Jul 15, 2025
Ironovation Materials Technology Co., Ltd.
Hongliang Yi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Annealing furnace, method of constructing annealing furnace, and st...
Patent number
12,359,277
Issue date
Jul 15, 2025
MAFTEC Co., Ltd
Masakuni Taguchi
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and its application for regulating heat treatment derived fr...
Patent number
12,359,278
Issue date
Jul 15, 2025
Central South University
Hongying Li
C21 - METALLURGY OF IRON
Information
Patent Grant
Plated steel sheet having excellent sealer adhesion and method for...
Patent number
12,351,919
Issue date
Jul 8, 2025
POSCO Co., Ltd
Tae-Chul Kim
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
Information
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
Information
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...
Information
Patent Grant
Cooling device for heat treatment
Patent number
12,345,480
Issue date
Jul 1, 2025
DONGWOO HST CO., LTD.
Soo Jin Chung
F28 - HEAT EXCHANGE IN GENERAL
Information
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...
Information
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...
Information
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
Information
Patent Grant
In-line microwave processing of alloys
Patent number
12,349,262
Issue date
Jul 1, 2025
The Penn State Research Foundation
Paul R. Ohodnicki
C21 - METALLURGY OF IRON
Information
Patent Grant
Laser hardening of cylinder bore
Patent number
12,344,907
Issue date
Jul 1, 2025
GM Global Technology Operations LLC
Garrold A. DeGrace
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for producing grain-oriented electrical steel sheet
Patent number
12,338,504
Issue date
Jun 24, 2025
Nippon Steel Corporation
Takeshi Imai
C21 - METALLURGY OF IRON
Information
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
Information
Patent Grant
Continuous intensive quenching apparatus
Patent number
12,338,501
Issue date
Jun 24, 2025
Ajax Tocco Magnethermic Corporation
Michael Aronov
C21 - METALLURGY OF IRON
Information
Patent Grant
Pre-ageing systems and methods using magnetic heating
Patent number
12,338,520
Issue date
Jun 24, 2025
Novelis Inc.
David Michael Custers
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
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
Information
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
Information
Patent Grant
Resistance spot welded joint comprising a zinc coated AHSS steel sheet
Patent number
12,337,405
Issue date
Jun 24, 2025
voestalpine STAHL GmbH
Florian Winkelhofer
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF PRODUCING SAME
Publication number
20250236925
Publication date
Jul 24, 2025
JFE STEEL CORPORATION
Yukihiro SHINGAKI
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF MANUFACTURING METAL MEMBER
Publication number
20250236921
Publication date
Jul 24, 2025
FUTABA INDUSTRIAL CO., LTD.
Hiromu Nakao
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD FOR MANUFACTURING IMPACT ENERGY ABSORBING COMPONENT, AND IMP...
Publication number
20250237281
Publication date
Jul 24, 2025
Toyota Jidosha Kabushiki Kaisha
Tomoaki IHARA
C21 - METALLURGY OF IRON
Information
Patent Application
APPARATUS, COMPOSITIONS, AND METHODS FOR STAINLESS-COATED STEEL REI...
Publication number
20250236956
Publication date
Jul 24, 2025
Allium Engineering, Inc.
Samuel McAlpine
B22 - CASTING POWDER METALLURGY
Information
Patent Application
METHOD FOR ANNEALING HOT-ROLLED STEEL STRIP
Publication number
20250230519
Publication date
Jul 17, 2025
JFE STEEL CORPORATION
Hirokazu KOBAYASHI
C21 - METALLURGY OF IRON
Information
Patent Application
LOW TEMPERATURE HARDENABLE STEELS WITH EXCELLENT MACHINABILITY
Publication number
20250230533
Publication date
Jul 17, 2025
Valls Besitz GmbH
Isaac Valls Anglés
C21 - METALLURGY OF IRON
Information
Patent Application
QUENCHING METHOD, AND QUENCHING MACHINE
Publication number
20250230513
Publication date
Jul 17, 2025
FUTABA INDUSTRIAL CO., LTD.
Hiroaki FUJITAKE
C21 - METALLURGY OF IRON
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
Information
Patent Application
MODULE FOR A PROCESS ENGINEERING SYSTEM AND METHOD FOR CONTROLLING...
Publication number
20250231542
Publication date
Jul 17, 2025
WAGO VERWALTUNGSGESELLSCHAFT MBH
Michael OBST
C21 - METALLURGY OF IRON
Information
Patent Application
Grain-Oriented Flat Steel Product and Method for Its Production
Publication number
20250223664
Publication date
Jul 10, 2025
THYSSENKRUPP ELECTRICAL STEEL GMBH
Christian Hecht
C21 - METALLURGY OF IRON
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
COLD-ROLLED STEEL SHEET
Publication number
20250215545
Publication date
Jul 3, 2025
NIPPON STEEL CORPORATION
Takuya NISHIO
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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
Method for producing a metal product
Publication number
20250215521
Publication date
Jul 3, 2025
SMS group GmbH
Thomas HASCHKE
B22 - CASTING POWDER METALLURGY
Information
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
Information
Patent Application
INDUCTION HEATING METHOD AND MANUFACTURING METHOD FOR RING-SHAPED M...
Publication number
20250220783
Publication date
Jul 3, 2025
NSK Ltd.
Naoyuki ONO
C21 - METALLURGY OF IRON
Information
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
ELECTRICAL STEELS
Publication number
20250207229
Publication date
Jun 26, 2025
Nucor Corporation
Paul KELLY
C21 - METALLURGY OF IRON
Information
Patent Application
HEATING METHOD AND HEATING SYSTEM
Publication number
20250207214
Publication date
Jun 26, 2025
NHK SPRING CO., LTD.
Kazuya TAKEDA
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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
QUENCHING A WHEEL COMPRISING A HUB
Publication number
20250206063
Publication date
Jun 26, 2025
Mubea Performance Wheels GmbH
Josef Gartner
B60 - VEHICLES IN GENERAL
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
QUENCHING TOOL AND QUENCHING METHOD
Publication number
20250197957
Publication date
Jun 19, 2025
NSK LTD.
Nobuyuki HAGIWARA
C21 - METALLURGY OF IRON