Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9462066 | Social action by quick response (QR) code | Sijia Song, Alejandro Jose Marcu | 2016-10-04 |
| 9356920 | Differentiating between good and bad content in a user-provided content system | Christopher Alexander Stein, Lev Popov | 2016-05-31 |
| 8819816 | Differentiating between good and bad content in a user-provided content system | Christopher Alexander Stein, Lev Popov | 2014-08-26 |