KOMATSU ZENOAH CO.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
1501 ENGINES120

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D541813 EngineSep 02, 05May 01, 07[1501]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2004/0240,976 Working vehicleAbandonedMay 28, 04Dec 02, 04[B66C]
D326270 Mowing apparatusExpiredJan 13, 89May 19, 92[]
D323330 Cutting wheel assembly for use in a mowing apparatusExpiredJan 13, 89Jan 21, 92[]
D322791 Cutting wheel for use in a mowing apparatusExpiredJan 13, 89Dec 31, 91[]
5050373 Mowing apparatus having uniformly moving cutting teethExpiredMay 17, 90Sep 24, 91[A01D]
5044146 Oscillating-type mowing apparatusExpiredMay 23, 90Sep 03, 91[A01D]
5010717 Oscillating-type mowing apparatusExpiredMar 26, 90Apr 30, 91[A01D]
D308210 Portable internal combustion power toolExpiredMar 18, 87May 29, 90[]
D303973 Portable internal combustion engine and toolsExpiredJan 16, 86Oct 10, 89[]
D303671 Combined portable internal combustion engine and toolExpiredMay 21, 86Sep 26, 89[]
D303207 Chain sawExpiredJun 09, 86Sep 05, 89[]
D302931 Chain sawExpiredApr 21, 86Aug 22, 89[]
4821691 Portable engine unitExpiredDec 11, 87Apr 18, 89[F02N]
4817230 Dust collectorExpiredNov 02, 87Apr 04, 89[A47L]
4815430 Portable engine unitExpiredDec 11, 87Mar 28, 89[F02B]
4802555 Oil supply systemExpiredDec 06, 83Feb 07, 89[F16N]
D299570 Portable blowerExpiredJun 09, 86Jan 24, 89[]
D299571 Portable blowerExpiredJan 16, 86Jan 24, 89[]
4798182 Portable engineExpiredMar 06, 87Jan 17, 89[F02F]
D297870 Portable blower and cleanerExpiredMay 13, 86Sep 27, 88[]

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