Assignee
SHIKOKU PAPER MFG CO LTD
3 granted patents·37 citations·filing 1974–1976
Top patents by PatentIndex Score
3 records- 0176US3997439AMethod of purification of waste water by treatment with zirconium saltSHIKOKU PAPER MFG CO LTD·Filed 1974·Granted Dec 14, 1976·20 cites·15 claims
- 0249US4097377AMethod of purification of waste water by treatment with zirconium saltSHIKOKU PAPER MFG CO LTD·Filed 1975·Granted Jun 27, 1978·10 cites·32 claims
- 0338US4066542AMethod of purification of waste water by treatment with zirconium saltSHIKOKU PAPER MFG CO LTD·Filed 1976·Granted Jan 3, 1978·7 cites·2 claims
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