Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6167135 | Method and apparatus for generating a ringing signal | Stefan Barkarö, Torbjorn Randahl, Sven Tor-Bjorn Wiklund | 2000-12-26 |
BW
Berndt Wallin
Overall (All Time): #3,638,038 of 4,157,543Top 90%
1
Patents All Time