NAGAOKA INTERNATIONAL CORPORATION
Patent Owner
Stats
- 6 US PATENTS IN FORCE
- 1 US APPLICATIONS PENDING
- Apr 20, 2017 most recent publication
Details
- 6 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 388 Total Citation Count
- Dec 30, 1987 Earliest Filing
- 16 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
Publication #
Title
Filing Date
Pub Date
Intl Class
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
9573082 Upper-layer cleaning device for water treatment device, and method for cleaning water treatment device filter layerJul 05, 12Feb 21, 17[C02F, B01D]
9017559 Water treatment apparatus and a method for cleaning a filter layer of a water treatment apparatusJun 15, 10Apr 28, 15[C02F, B01D]
8110116 Water treatment apparatus and a method for cleaning a filter layer of a water treatment apparatusMay 19, 09Feb 07, 12[B01D]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5858235 Sludge dehydrating press having cylindrical inner screen caseExpiredDec 02, 96Jan 12, 99[B01D]
5673726 Method for weaving a multi-ply fabric packing with hexagonal cellsExpiredJun 08, 95Oct 07, 97[D03D]
5618424 Rotary drum type device for separating solid particles from a liquidExpiredApr 21, 95Apr 08, 97[B01D]
5311942 Well screen having a protective frame for a horizontal or high-angle wellExpiredJul 30, 92May 17, 94[E21B]
Top Inventors for This Owner
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