Issued Patents All Time
Showing 1–4 of 4 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, Qinjiang Liu, Yufeng Dai, Wanneng Liao | 2025-06-10 |
| 12128474 | Method for preparing negative pressure film-covering frozen sand mold | Haoqin Yang, Zhongde Shan, Qinjiang Liu, Dandan Yan, Shijie Dong | 2024-10-29 |
| 11945026 | Multi-path internal microporous efficient refrigeration method and device for frozen sand mold | Zhongde Shan, Haoqin Yang | 2024-04-02 |
| 11660662 | Interlayer pre-cooling apparatus for sand mold freezing printing | Zhongde Shan, Haoqin Yang | 2023-05-30 |