Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9303718 | Noise reduction structure | Min Long, Qiang Guo, Kouji Shinzaki | 2016-04-05 |
| 8702483 | Assembly of pipe unit and pipe hood for ventilating fan | Yefan Weng, Yu Feng | 2014-04-22 |