AKCHEMICAL CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E02F DREDGING; SOIL-SHIFTING 342
 
  
 
E02D FOUNDATIONS; EXCAVATIONS; EMBANKMENTS 122
 
  
 
F02F CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES 134

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6421938 Endless chain type cutterDec 16, 94Jul 23, 02[E02F]
5561923 Excavating apparatusDec 16, 94Oct 08, 96[F02F]
5349765 Excavator for constructing underground continuous wall and construction method using the excavatorJul 02, 92Sep 27, 94[E02F]
5257471 Excavator for forming underground continuous wallJun 17, 92Nov 02, 93[E02F]
5244315 Excavator for constructing underground continuous wall and underground continuous wall construction methodJul 06, 92Sep 14, 93[E02D]

Expired/Abandoned/Withdrawn Patents

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Top Inventors for This Owner

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