Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8700494 | Identifying product variants | Liangying Wu, Timothy Stevenson | 2014-04-15 |
| 8700625 | Identifying alternative products | Robert B. Hall | 2014-04-15 |
| 8195663 | Identifying alternative products | Robert B. Hall | 2012-06-05 |
| 8190609 | Identifying alternative products | Robert B. Hall | 2012-05-29 |