Liang; Guanxian
Patent Applications and Registrations
Patent applications and USPTO patent grants for Liang; Guanxian.The latest application filed is for "noise reduction structure".
- Liang; Guanxian - Guangdong CN
- Liang; Guanxian - Foshan CN
| Patent | Date |
|---|---|
| Noise reduction structure Grant 9,303,718 - Long , et al. April 5, 2 | 2016-04-05 |
| Noise Reduction Structure App 20150276011 - Long; Min ; et al. | 2015-10-01 |
| Assembly of pipe unit and pipe hood for ventilating fan Grant 8,702,483 - Weng , et al. April 22, 2 | 2014-04-22 |
| Assembly Of Pipe Unit And Pipe Hood For Ventilating Fan App 20100081370 - Weng; Yefan ; et al. | 2010-04-01 |
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