Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11611814 | System and method for monitoring temperature on a roof | Xuewen Zhu, Jiang Li, John Petrachek | 2023-03-21 |
| D936003 | Energy storage portable power source | Yi-Cheng Li, Bingjun Zeng | 2021-11-16 |
| D933603 | Mobile energy storage power unit | Yi-Cheng Li, Bingjun Zeng | 2021-10-19 |
| 10171892 | System and method for monitoring water level on a roof | John Petrachek, Xuewen Zhu, Jiang Li | 2019-01-01 |