Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12373873 | Systems and methods for checking and confirming the purchase of merchandise items | Zhichun Xiao, Lingfeng Zhang, Yao Liu, Jon Hammer, Yutao Tang +10 more | 2025-07-29 |
| 12002080 | Systems and methods for checking and confirming the purchase of merchandise items | Zhichun Xiao, Lingfeng Zhang, Yao Liu, Jon Hammer, Yutao Tang +10 more | 2024-06-04 |
| 11966900 | System and method for detecting unpaid items in retail store transactions | Zhichun Xiao, Lingfeng Zhang, Jon Hammer, Joseph Duffy, Yao Liu +11 more | 2024-04-23 |