Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9008611 | System and method for providing prepaid billing for instant messaging users | Madhukar Narayan Thakur, Mingzhe Zhuang | 2015-04-14 |
| 8626117 | System and method for providing prepaid billing for instant messaging users | Madhukar Narayan Thakur, Mingzhe Zhuang | 2014-01-07 |
| 8073472 | System and method for providing prepaid billing for instant messaging users | Madhukar Narayan Thakur, Mingzhe Zhuang | 2011-12-06 |