NAGAOKA CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
E03B INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER 211
 
 
 
B01D SEPARATION 1133
 
 
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
 
 
E02B HYDRAULIC ENGINEERING 117
 
 
 
E02F DREDGING; SOIL-SHIFTING 144

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9345993 Cleaning apparatus for filtration layer in seawater infiltration intakeAug 10, 12May 24, 16[E03B, E02B, C02F, B01D, E02F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0224,746 SEAWATER INFILTRATION METHOD AND WATER INFILTRATION INTAKE UNITAbandonedAug 06, 12Aug 14, 14[E03B]

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