Assignee
NITTETSU KAKOKI KK
14 granted patents·283 citations·filing 1973–2000
Top patents by PatentIndex Score
14 records- 0190US6423235B1Column gas-liquid contacting apparatus and its use thereofNITTETSU KAKOKI KK·Filed 2000·Granted Jul 23, 2002·64 cites·21 claims
- 0287US4119538ATreatment of waste liquid and apparatus therefor and a fertilizer composition obtained therebyNITTETSU KAKOKI KK·Filed 1976·Granted Oct 10, 1978·59 cites·19 claims
- 0379US4425285APacking material unitNITTETSU KAKOKI KK·Filed 1982·Granted Jan 10, 1984·38 cites·2 claims
- 0475US4316878AMethod for the combustive treatment of waste fluids containing nitrogen compoundsNITTETSU KAKOKI KK·Filed 1980·Granted Feb 23, 1982·29 cites·13 claims
- 0566US4093505AMethod and apparatus for heating and removing moisture from watery materialNITTETSU KAKOKI KK·Filed 1976·Granted Jun 6, 1978·21 cites·10 claims
- 0659US4062777ASolid-fluid contacting apparatusNITTETSU KAKOKI KK·Filed 1976·Granted Dec 13, 1977·21 cites·14 claims
- 0755US3941875AProcess for treating gas containing hydrogen sulfideNITTETSU KAKOKI KK·Filed 1973·Granted Mar 2, 1976·11 cites·4 claims
- 0847US4045341AMethod for the disposal of waste water containing ammonium ions, sulfate ions and organic substancesNITTETSU KAKOKI KK·Filed 1976·Granted Aug 30, 1977·10 cites·5 claims
- 0942US4118467ATreatment of gas containing hydrogen sulfideNITTETSU KAKOKI KK·Filed 1978·Granted Oct 3, 1978·8 cites·7 claims
- 1039US4285820AProcess for the treatment of a waste liquid containing boron compounds and organic compoundsNITTETSU KAKOKI KK·Filed 1979·Granted Aug 25, 1981·5 cites·6 claims
- 1138US6203704B1Method for separating objective componentNITTETSU KAKOKI KK·Filed 1999·Granted Mar 20, 2001·6 cites·17 claims
- 1238US4169131AProcess for recovering caustic alkali from spent alkali liquorNITTETSU KAKOKI KK·Filed 1978·Granted Sep 25, 1979·3 cites·8 claims
- 1333US5328670AMethod of treating nickel-containing etching waste fluidNITTETSU KAKOKI KK·Filed 1992·Granted Jul 12, 1994·7 cites·9 claims
- 1423US6039879AMethod for separating and recovering objective componentNITTETSU KAKOKI KK·Filed 1997·Granted Mar 21, 2000·1 cites·10 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →