Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11821191 | Extended-time release method and device for toilet cleaner | Zhanqiu Lai, Cancan WANG | 2023-11-21 |
| 11780768 | Photodarkening-resistant ytterbium-doped quartz optical fiber and preparation method therefor | Fengguang Lou, Chunlei Yu, Meng Wang, Lei Zhang, Xiaoqing XU +3 more | 2023-10-10 |