Inventor · disambiguated record
Risto Piirainen
Also filed as: PIIRAINEN RISTO
5 granted patents·306 citations·filing 1991–1998
84Inventor score
Technology areasH01P
Files withNOKIA TELECOMMUNICATIONS OY5
Top patents by PatentIndex Score
5 records- 0194US5689219ASumming networkNOKIA TELECOMMUNICATIONS OY·Filed 1995·Granted Nov 18, 1997·144 cites·8 claims
- 0293US6321069B1Arrangement for reducing intermodulation distortion of radio frequency signalsNOKIA TELECOMMUNICATIONS OY·Filed 1998·Granted Nov 20, 2001·101 cites·3 claims
- 0378US5389903AComb-line high-frequency band-pass filter having adjustment for varying coupling type between adjacent coaxial resonatorsNOKIA TELECOMMUNICATIONS OY·Filed 1991·Granted Feb 14, 1995·36 cites·12 claims
- 0454US5418509AHigh frequency comb-like filterNOKIA TELECOMMUNICATIONS OY·Filed 1992·Granted May 23, 1995·14 cites·3 claims
- 0551US5686874ATemperature-compensated combinerNOKIA TELECOMMUNICATIONS OY·Filed 1995·Granted Nov 11, 1997·11 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →