Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490348 | Switching system for providing an improved call waiting service | Masahiko Yamagishi | 2002-12-03 |
WO
Wataru Oomori
Overall (2002): #94,022 of 266,432Top 40%
1
Patents 2002