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Patent applications and USPTO patent grants for Hou; Guancheng.The latest application filed is for "fire damper for ventilating fan".
Patent | Date |
---|---|
Ventilation illumination device Grant 10,274,191 - Li , et al. | 2019-04-30 |
Ventilating device Grant 9,903,377 - He , et al. February 27, 2 | 2018-02-27 |
Fire damper for ventilating fan Grant 9,868,003 - Long , et al. January 16, 2 | 2018-01-16 |
Fire Damper For Ventilating Fan App 20170028233 - Long; Min ;   et al. | 2017-02-02 |
Fire damper for ventilating fan Grant 9,533,179 - Long , et al. January 3, 2 | 2017-01-03 |
Ventilation Illumination Device App 20160312996 - Li; Gangyi ;   et al. | 2016-10-27 |
Packing structure including a large carton and smaller cartons contained therein Grant 9,457,931 - Hou , et al. October 4, 2 | 2016-10-04 |
Ventilation fan mounting structure Grant 9,194,602 - Hu , et al. November 24, 2 | 2015-11-24 |
Packing Structure App 20150158630 - Hou; Guancheng ;   et al. | 2015-06-11 |
Ventilation Fan Mounting Structure App 20150060638 - Hu; Yiheng ;   et al. | 2015-03-05 |
Ventilating Device App 20150003980 - He; Yanbiao ;   et al. | 2015-01-01 |
Fire Damper For Ventilating Fan App 20130130613 - Long; Min ;   et al. | 2013-05-23 |
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