Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11948152 | System and method for making purchase payment after payment failures | Youyou Yang, Daniel E. Kaufman | 2024-04-02 |
| 11397951 | System and method for making purchase payment after payment failures | Youyou Yang, Daniel E. Kaufman | 2022-07-26 |