Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10350936 | Document folder for storage cabinets | Shengbo Zhu | 2019-07-16 |
| 10286701 | Hand stamp with use count and smart phone authorization | Shengbo Zhu | 2019-05-14 |
| 10262482 | High security document storage and retrieval system | Shengbo Zhu | 2019-04-16 |