ClassID:

118966

C21D3/06 - CPC Classification

Classification description:

Diffusion processes for extraction of non-metals; Furnaces therefor; Extraction of non-metals Extraction of hydrogen

Recent Application in this class:
#1
20260098329
2026-04-09

STEEL MATERIAL WITH GOOD FATIGUE PROPERTY IN HYDROGEN AND METHOD FOR PRODUCING THE SAME, AND STEEL PIPE AND METHOD FOR PRODUCING THE SAME

#2
20240352549
2024-10-24

DEHYDROGENATION APPARATUS, STEEL SHEET PRODUCTION SYSTEM, AND STEEL SHEET PRODUCTION METHOD

#3
20240150876
2024-05-09

CLAD STEEL PLATE, MEMBER, AND PRODUCTION METHODS FOR SAME

#4
20230265539
2023-08-24

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

#5
20230243006
2023-08-03

DEHYDROGENATION METHOD FOR STEEL MATERIAL AND STEEL PRODUCT, AND PRODUCTION METHOD FOR STEEL MATERIAL AND STEEL PRODUCT

#6
20210025018
2021-01-28

Methods For Modifying Surface Properties Using Exothermic Reactive Powder Mixtures

#7
20200173004
2020-06-04

High-strength Zn—Al—Mg-based surface-coated steel sheet and method for producing same

#8
20190100817
2019-04-04

Dehydrogenation processing method for turbine blades

#9
20180347003
2018-12-06

Methods for producing titanium and titanium alloy articles

#10
20180218834
2018-08-02

Method for improvement of magnetic performance of sintered NdFeB lamellar magnet

#11
20180010241
2018-01-11

Sputtering target and/or coil, and process for producing same

#12
20170278602
2017-09-28

R-T-B based permanent magnet

#13
20170250016
2017-08-31

R-T-B based permanent magnet

#14
20170250013
2017-08-31

R-T-B based permanent magnet

#15
20170140855
2017-05-18

R-T-B based sintered magnet

#16
20170001717
2017-01-05

Aircraft landing gear struts coated with a zinc-nickel alloy

#17
20170001716
2017-01-05

Landing gear comprising a zinc-nickel deposit resistant to fretting

#18
20160230239
2016-08-11

Methods for producing titanium and titanium alloy articles

#19
20160214351
2016-07-28

High-strength galvanized steel sheet and method of manufacturing the same

#20
20160145701
2016-05-26

STAINLESS STEEL RESISTANT TO DELAYED CRACKING AND A METHOD FOR ITS PRODUCTION

#21
20150302960
2015-10-22

MANUFACTURING METHOD OF A POWDER FOR COMPACTING RARE EARTH MAGNET AND THE RARE EARTH MAGNET OMITTING JET MILLING PROCESS

#22
20150243417
2015-08-27

Method and equipment for processing NdFeB rare earth permanent magnetic alloy with hydrogen pulverization

#23
20130112556
2013-05-09

Sputtering target and/or coil, and process for producing same

#24
20120199252
2012-08-09

Heat treatment of martensitic stainless steel after remelting under a layer of slag

#25
20110005645
2011-01-13

AUSTENITIC STAINLESS STEEL, AND METHOD FOR REMOVING HYDROGEN THEREFROM

#26
20100154939
2010-06-24

AUSTENITIC STAINLESS STEEL AND PROCESS FOR REMOVING HYDROGEN THEREFROM

#27
20090263269
2009-10-22

AUSTENITIC STAINLESS STEEL AND PROCESS FOR REMOVING HYDROGEN THEREFROM

#28
20090007998
2009-01-08

Wire with excellent suitability for drawing and process for producing the same

#29
20080257008
2008-10-23

High strength welded steel tube superior in hydrogen embrittlement cracking resistance of weld metal and method of production of same