💡Patents

• Liang Y, Ling Y, Li Y, Liu L, Xu N, and Jin L, inventors; Sichuan University, assignee. Air Purification System. Patent No. ZL 2021 2 2679101.4. March 8, 2022.
• Jing X, Zhu Y, Xu L, Jing N, Sun L, Ling Y, Zhang R, Tu W, Zhang L, Huang X, Yan G, and An N, inventors; City University of Hefei, assignee. Construction Site Sprinkler Device Integrating Rotation and Elevation. Patent No. ZL 2022 2 0890424.X. April 18, 2022.