Risto Piirainen

Nokia: 2 patents #8 of 69Top 15%

Overall (1997): #26,487 of 185,788Top 15%

Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5689219	Summing network	—	1997-11-18
5686874	Temperature-compensated combiner	—	1997-11-11