Inventor · disambiguated record
Erkki P. Niskanen
Also filed as: NISKANEN ERKKI · NISKANEN ERKKI P · NISKANEN ERKKI PIETARI
4 granted patents·40 citations·filing 1975–1984
75Inventor score
Top patents by PatentIndex Score
4 records- 0155US4196752AGroup valve for two separate liquid supply linesKOLTEK OY·Filed 1978·Granted Apr 8, 1980·15 cites·6 claims
- 0242US4013094A4-Way valve for separating of two liquid supply lines, especially in dairies and similar plantsNISKANEN ERKKI PIETARI·Filed 1975·Granted Mar 22, 1977·12 cites·4 claims
- 0332US4526200ABlocking valve for liquidsNISKANEN ERKKI OY·Filed 1984·Granted Jul 2, 1985·7 cites·5 claims
- 0430US4586538ASpindle valve for a tube system for liquidsNISKANEN ERKKI OY·Filed 1984·Granted May 6, 1986·6 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →