Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6501967 | Defining of a telephone's ringing tone | Jarmo Makela, Sakari Pelkonen, Juha Sippola, Jani Leppälammi | 2002-12-31 |
HS
Heikki Särkkä
Overall (All Time): #3,567,910 of 4,157,543Top 90%
1
Patents All Time