Qian; Zuocheng
Patent Applications and Registrations
Patent applications and USPTO patent grants for Qian; Zuocheng.The latest application filed is for "hinged valve".
- Qian; Zuocheng - Shanghai CN
| Patent | Date |
|---|---|
| Retractable handle assembly, valve using the same and intermediate bulk container Grant 10,823,309 - Fang , et al. November 3, 2 | 2020-11-03 |
| Intermediate bulk container and valve opening/closing device therefor Grant 10,107,414 - Qian , et al. October 23, 2 | 2018-10-23 |
| Intermediate bulk container and valve opening/closing device therefor Grant 10,047,875 - Qian , et al. August 14, 2 | 2018-08-14 |
| Hinged valve Grant 10,001,218 - Fang , et al. June 19, 2 | 2018-06-19 |
| Valve with a hinged valve core Grant 9,534,693 - Qian , et al. January 3, 2 | 2017-01-03 |
| Hinged Valve App 20160230895 - FANG; Zhengwei ; et al. | 2016-08-11 |
| Intermediate Bulk Container And Valve Opening/closing Device Therefor App 20160123493 - QIAN; Zuocheng ; et al. | 2016-05-05 |
| Hinge system and collapsible container Grant 9,327,870 - Jian , et al. May 3, 2 | 2016-05-03 |
| Locking system applicable in large container Grant 9,321,587 - Jian , et al. April 26, 2 | 2016-04-26 |
| Valve core assembly and valve adopting the valve core assembly Grant 9,279,505 - Yuan , et al. March 8, 2 | 2016-03-08 |
| Retractable Handle Assembly, Valve Using The Same And Intermediate Bulk Container App 20150369391 - FANG; Zhengwei ; et al. | 2015-12-24 |
| Valve With A Hinged Valve Core App 20150300504 - QIAN; Zuocheng ; et al. | 2015-10-22 |
| Intermediate Bulk Container And Valve Opening/closing Device Therefor App 20150233491 - Qian; Zuocheng ; et al. | 2015-08-20 |
| Valve and valve cartridge assembly thereof Grant 9,004,448 - Qian , et al. April 14, 2 | 2015-04-14 |
| Locking System Applicable In Large Container App 20140326721 - Jian; Yuanli ; et al. | 2014-11-06 |
| Valve Core Assembly And Valve Adopting The Valve Core Assembly App 20140252254 - Yuan; Fang ; et al. | 2014-09-11 |
| Hinge System And Collapsible Container App 20140231425 - Jian; Yuanli ; et al. | 2014-08-21 |
| Valve And Valve Cartridge Assembly Thereof App 20130341545 - Qian; Zuocheng ; et al. | 2013-12-26 |
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