Assignee
NISHIHARA ENV SAN RES CO LTD
JP·8 granted patents·275 citations·filing 1975–1991
Top patents by PatentIndex Score
8 records- 0193US5098567AWaste water treating processNISHIHARA ENV SAN RES CO LTD·Filed 1990·Granted Mar 24, 1992·123 cites·4 claims
- 0286US4655925AActivated sludge methodNISHIHARA ENV SAN RES CO LTD·Filed 1985·Granted Apr 7, 1987·73 cites·8 claims
- 0367US4661845AMicroorganism monitoring apparatusNISHIHARA ENV SAN RES CO LTD·Filed 1984·Granted Apr 28, 1987·16 cites·34 claims
- 0454US4002053AMethod and apparatus for measuring density of suspensionNISHIHARA ENV SAN RES CO LTD·Filed 1975·Granted Jan 11, 1977·13 cites·4 claims
- 0547US4915681ACentrifugal separator with continuous dischargeNISHIHARA ENV SAN RES CO LTD·Filed 1989·Granted Apr 10, 1990·10 cites·15 claims
- 0646US4302332ACentrifugal thickenerNISHIHARA ENV SAN RES CO LTD·Filed 1980·Granted Nov 24, 1981·14 cites·13 claims
- 0745US5145589ASolid-liquid separator and process for washing the sameNISHIHARA ENV SAN RES CO LTD·Filed 1991·Granted Sep 8, 1992·12 cites·3 claims
- 0841US4137177AFiltering apparatus for sludgy liquidsNISHIHARA ENV SAN RES CO LTD·Filed 1976·Granted Jan 30, 1979·14 cites·1 claims
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