Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12325063 | Ultrasonic-assisted permeation and homogenization molding device and method for frozen printing liquid drops | Zhongde Shan, Haoqin Yang, Jianpei Shi, Yufeng Dai, Wanneng Liao | 2025-06-10 |
| 12128474 | Method for preparing negative pressure film-covering frozen sand mold | Haoqin Yang, Zhongde Shan, Jianpei Shi, Dandan Yan, Shijie Dong | 2024-10-29 |