Osmo Leppanen

SO Sonera Oy: 1 patents #1 of 11Top 10%

SO Sonera Oyj: 1 patents #9 of 24Top 40%

TO Telecom Finland Oy: 1 patents #1 of 8Top 15%

Overall (All Time): #1,617,173 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
6418206	Procedure and system for the setting up of calls	—	2002-07-09
5898918	Method for classifying calls for a mobile subscription	—	1999-04-27
5758286	Method for accomplishing a mobile telecommunications connection using abbreviated dialing	—	1998-05-26