ClassID:

119155

C21D2241/00 - CPC Classification

Classification description:

Treatments in a special environment

Sub-classes:
Recent Application in this class:
#1
20260016230
2026-01-15

METHOD FOR SETTING AN OVEN ATMOSPHERE IN A HEAT-TREATMENT OVEN

#2
20260015686
2026-01-15

NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME

#3
20250137084
2025-05-01

HIGH-STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING SAME

#4
20240368724
2024-11-07

ZINC PLATED STEEL SHEET HAVING EXCELLENT SURFACE QUALITY AND SPOT WELDABILITY, AND MANUFACTURING METHOD THEREFOR

#5
20240258001
2024-08-01

NANOCRYSTALLINE SOFT MAGNETIC ALLOY WITH HIGH MAGNETIC INDUCTION AND HIGH FREQUENCY AND PREPARATION METHOD THEREOF

#6
20230383788
2023-11-30

BEARING ASSEMBLY

#7
20230265539
2023-08-24

CONTINUOUS ANNEALING LINE, CONTINUOUS HOT-DIP GALVANIZING LINE, AND STEEL SHEET PRODUCTION METHOD

#8
20230018291
2023-01-19

Zinc plated steel sheet having excellent surface quality and spot weldability, and manufacturing method therefor

#9
20230013043
2023-01-19

HOT-ROLLED STEEL SHEET FOR NON-ORIENTED ELECTROMAGNETIC STEEL SHEETS

#10
20220199304
2022-06-23

WATER-BASED ALKALINE COMPOSITION FOR FORMING AN INSULATING LAYER OF AN ANNEALING SEPARATOR, COATED SOFT MAGNETIC ALLOY AND METHOD FOR PRODUCING A COATED SOFT MAGNETIC STRIP

#11
20220056548
2022-02-24

NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME

#12
20220033931
2022-02-03

COOLING METHOD AND DEVICE FOR COOLING A WIRE AND CORRESPONDING WIRE-PROCESSING INSTALLATION

#13
20220024181
2022-01-27

Hot-dip galvanized steel sheet having excellent surface appearance and low-temperature bonding brittleness

#14
20220018394
2022-01-20

Bearing assembly

#15
20220010402
2022-01-13

GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREFOR

#16
20210395848
2021-12-23

Method of press-hardening a hot-shapable plate

#17
20210002746
2021-01-07

Press hardened steel with surface layered homogenous oxide after hot forming

#18
20200299802
2020-09-24

RESISTANCE ANNEALING FURNACE TO ANNEAL AT LEAST ONE METAL OR METAL ALLOY WIRE, STRAND, STRING, WIRE ROD OR STRIP

#19
20200172990
2020-06-04

Martensite-based stainless steel component and method for manufacturing the same

#20
20200087773
2020-03-19

Metal carburization process to produce a uniform, concentrated solid solution of interstitial carbon workpiece and articles made from same

#21
20200040416
2020-02-06

Assembly component

#22
20190345576
2019-11-14

Non-oriented electrical steel sheet and method for producing same

#23
20190316222
2019-10-17

Ultra high-strength air-hardening multiphase steel having excellent processing properties, and method for manufacturing a strip of said steel

#24
20190284653
2019-09-19

Surface treatment process

#25
20190161819
2019-05-30

METHOD FOR PRODUCING A COMPONENT, COMPONENT AND PRESS FOR PRODUCING A COMPONENT

#26
20180370578
2018-12-27

BODY COMPONENT OR CHASSIS COMPONENT OF A MOTOR VEHICLE HAVING IMPROVED CRASH PERFORMANCE, AND METHOD FOR PRODUCING SAME

#27
20180237892
2018-08-23

Non-scaling heat-treatable steel and method for producing a non-scaling component from said steel

#28
20180223408
2018-08-09

Separator production method

#29
20180195145
2018-07-12

Method of producing martensitic stainless steel strip

#30
20170292171
2017-10-12

Heat treated steel product having high strength and excellent chemical conversion coating ability and method of production of same

#31
20150020992
2015-01-22

Non-scaling heat-treatable steel and method for producing a non-scaling component from said steel

#32
20150017474
2015-01-15

High strength galvanized steel sheet and method for manufacturing the same

#33
20150013820
2015-01-15

METHOD FOR ROLLING/DRAWING NICKEL-FREE HIGH-NITROGEN STAINLESS STEEL MATERIAL, THIN SEAMLESS TUBE OF NICKEL-FREE HIGH-NITROGEN STAINLESS STEEL, AND METHOD OF MANUFACTURING THE SAME

#34
20140224383
2014-08-14

Steel for manufacturing cemented steel parts, cemented steel parts made with said steel and method for manufacturing same

#35
20130068350
2013-03-21

Method and apparatus for heating a pre-coated plate of steel