Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7991131 | Control of prepaid balance status notification | Yigang Cai, Werner Ulrich | 2011-08-02 |
WB
William Dale Bartter
Overall (All Time): #3,258,235 of 4,157,543Top 80%
1
Patents All Time