Jinwoong Technology Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B21C MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL219
 
  
 
B21B ROLLING OF METAL 131
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8959976 Apparatus for manufacturing a metal plate for a duct, including mesh-type beadsDec 01, 10Feb 24, 15[B21D, F24F]
8915109 Manufacturing apparatus and method of spiral duct including elbowMay 22, 08Dec 23, 14[B21C, B21D, B21B]
8522587 Joint jig of spiral duct manufacturing apparatusMay 22, 08Sep 03, 13[B21C]

Expired/Abandoned/Withdrawn Patents

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Top Inventors for This Owner

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