NIKKEN CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B61C LOCOMOTIVES; MOTOR RAILCARS 115

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6352035 Driving mechanism of a track traveling vehicleSep 28, 00Mar 05, 02[B61C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0199,368 Night soil drying treatment apparatusAbandonedFeb 16, 07Aug 21, 08[B08B, A61L]
5638616 Oil supply mechanism in a deep excavatorExpiredDec 20, 95Jun 17, 97[B66C]
5598641 Raw sewage disposal apparatusExpiredAug 16, 95Feb 04, 97[F26B]
5575082 Raw sewage disposal apparatusExpiredApr 20, 94Nov 19, 96[F26B]
5566401 Cleaning mechanism of a stoolExpiredDec 20, 94Oct 22, 96[E03D]
5564133 Raw sewage disposal apparatusExpiredNov 18, 94Oct 15, 96[A47K]
5549437 Fork lift truck loading mechanismExpiredDec 09, 94Aug 27, 96[B60P]
5473828 Structure of a clamshell bucket and a hydraulic control circuitExpiredNov 28, 94Dec 12, 95[B66C]
5450918 Laterally movable mechanism of a vehicleExpiredDec 21, 93Sep 19, 95[B60S]
5431247 Lifting apparatusExpiredMar 31, 94Jul 11, 95[B66F]
5418982 Raw sewage disposal apparatus and prefab for accommodating the sameExpiredOct 26, 93May 30, 95[A47K]
5377432 Deep excavatorExpiredOct 19, 93Jan 03, 95[B66C]
5375348 Deep excavatorExpiredMar 12, 93Dec 27, 94[B66C]
5357880 Raw sewage disposal apparatusExpiredNov 22, 93Oct 25, 94[F23G, A47K]
5324162 Accessory detachable mechanism of construction machineExpiredOct 08, 92Jun 28, 94[E02F]
5273719 Urine treating deviceExpiredJun 22, 92Dec 28, 93[C02F, B01D]
5267824 Tool controlling mechanisms for excavator with telescopic armExpiredAug 08, 91Dec 07, 93[B66C]
5261126 Raw sewage disposal apparatusExpiredDec 03, 92Nov 16, 93[A47K]
5257466 Raw sewage disposal apparatusExpiredOct 29, 91Nov 02, 93[F26B]
5256026 Accessory detachable mechanism of construction machineExpiredApr 03, 92Oct 26, 93[F02F]

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Top Inventors for This Owner

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