Dong Won Metal Ind. Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
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 243

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5653937 Method for heat treating an impact beam of automotive vehicle door and a system of the sameJul 20, 95Aug 05, 97[C21D]
5487795 Method for heat treating an impact beam of automotive vehicle door and a system of the sameJul 01, 94Jan 30, 96[C21D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0039,677 Automobile Impact Beam with Integrated Brackets and The Manufacturing Method ThereofAbandonedApr 04, 06Feb 12, 09[B62D]
6290898 Apparatus for heat treatment of impact beams for use in automobilesExpiredApr 17, 00Sep 18, 01[C21D]

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