ClassID:

119099

C21D9/48 - page 2 - CPC Classification

Classification description:

Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets

Recent Application in this class:
#301
20090126837
2009-05-21

COLD ROLLED STEEL SHEET HAVING SUPERIOR FORMABILITY AND HIGH YIELD RATIO, PROCESS FOR PRODUCING THE SAME

#302
20090126447
2009-05-21

Thermoforming press

#303
20090056838
2009-03-05

Ferritic stainless steel sheet having excellent corrosion resistance and method of manufacturing the same

#304
20090053096
2009-02-26

High-strength cold-rolled steel sheet excellent in coating adhesion, workability and hydrogen embrittlement resistance, and steel component for automobile

#305
20090044590
2009-02-19

Single point incremental forming of metallic materials using applied direct current

#306
20090031950
2009-02-05

Furnace configured for use in both the galvannealing and galvanizing of a metal strip

#307
20090025838
2009-01-29

Cold-rolled steel sheet, method of producing the same, battery, and method of producing the same

#308
20080308200
2008-12-18

Method to produce steel sheet excellent in workability

#309
20080308194
2008-12-18

Method for making a steel part of multiphase microstructure

#310
20080295924
2008-12-04

Steel sheet excellent in workability

#311
20080283156
2008-11-20

Method for making a coated steel part having very high resistance after heat treatment

#312
20080251161
2008-10-16

High strength cold rolled steel sheet and plated steel sheet excellent in the balance of strength and workability

#313
20080202638
2008-08-28

High-strength cold-rolled steel sheet, high-strength plated steel sheet, and methods for their manufacture

#314
20080185077
2008-08-07

Cold Rolled Steel Sheet Having High Yield Ratio And Less Anisotropy, Process For Producing The Same

#315
20080178972
2008-07-31

HIGH STRENGTH STEEL SHEET AND METHOD FOR PRODUCING THE SAME

#316
20080175743
2008-07-24

Alloyed Hot-Dip Galvanized Steel Sheet and Method of Producing the Same

#317
20080166257
2008-07-10

Cold-rolled steel sheet excellent in workability

#318
20080105023
2008-05-08

METHOD OF FORMING A PANEL FROM A METAL ALLOY SHEET

#319
20080099109
2008-05-01

High-strength steel sheets with excellent formability and method for manufacturing the same

#320
20070095444
2007-05-03

High strength steel sheet excellent in formability

#321
20060137770
2006-06-29

Metal container comprising a steel sheet with low aluminum content

#322
20060124210
2006-06-15

Annealing process of a stainless steel band

#323
20050155673
2005-07-21

High strength hot rolled steel sheet superior in workability, fatigue property, and surface quality

#324
20050081479
2005-04-21

Heat treatment strategically strengthened door beam

#325
10391529
2015-05-26

Cold-rolled aluminum killed steel sheet and method of manufacturing packaging from said sheet