Samhwa Steel Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
C22C ALLOYS 270
 
 
 
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 144

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9206489 Steel wire with high strength for cold forging to improve service life of mold and method of manufacturing the sameNov 02, 11Dec 08, 15[C21D, C22C]
6752880 Quenched and tempered steel wire with excellent cold forging propertiesSep 11, 02Jun 22, 04[C22C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0256,767 Steel Wire for Cold Forging Having Excellent Low Temperature Impact Properties and Method of Producing the SameAbandonedNov 29, 04Nov 08, 07[C22C]
2005/0217,763 Quenched and tempered steel wire with superior cold forging characteristicsAbandonedJan 10, 05Oct 06, 05[C22C]
2004/0206,426 Quenched and tempered steel wire with excellent cold forging propertiesAbandonedMay 03, 04Oct 21, 04[C21D]

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