Zhai; Songmao
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zhai; Songmao.The latest application filed is for "large-scale submersible sewage pump".
- Zhai; Songmao - Zhejiang CN
| Patent | Date |
|---|---|
| Dry-type cable wire outlet device for a submersible electrical pump Grant 9,816,508 - Ying , et al. November 14, 2 | 2017-11-14 |
| Large-scale submersible sewage pump Grant 9,255,577 - Zhai , et al. February 9, 2 | 2016-02-09 |
| Large-scale hydraulic variable-speed floating box flap valve Grant 9,103,452 - Zhai , et al. August 11, 2 | 2015-08-11 |
| Large-scale Submersible Sewage Pump App 20140010683 - Zhai; Songmao ; et al. | 2014-01-09 |
| Large-scale Hydraulic Variable-speed Floating Box Flap Valve App 20130292589 - Zhai; Songmao ; et al. | 2013-11-07 |
| Dry-type Cable Wire Outlet Device For A Submersible Electrical Pump App 20130177458 - YING; Jianguo ; et al. | 2013-07-11 |
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