Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10480731 | Municipal warning lamp | Xiaojun Liu, Caixia Wang | 2019-11-19 |
| 10465890 | LED lamp | Xiaojun Liu | 2019-11-05 |
| 10458637 | High-intelligent LED street lamp | Xiaojun Liu | 2019-10-29 |
| 10415200 | Low-impact water conserving dam | Xiaojun Liu, Caixia Wang | 2019-09-17 |
| 10384955 | Sewage treatment system | Xiaojun Liu, Caixia Wang | 2019-08-20 |