Patent applications and USPTO patent grants for Zhang; Wanying.The latest application filed is for "defrosting control method for multi-split system".
Patent | Date |
---|---|
Defrosting control method for multi-split system Grant 11,320,185 - Zhuo , et al. May 3, 2 | 2022-05-03 |
Defrosting Control Method For Multi-split System App 20200208890 - ZHUO; BAITIAN ;   et al. | 2020-07-02 |
Method And Device For Controlling Expansion Valve App 20200191430 - Wang; Jun ;   et al. | 2020-06-18 |
Instant messaging interaction method, system, server, and storage medium Grant 10,057,196 - Zhang August 21, 2 | 2018-08-21 |
Instant Messaging Interaction Method, System, Server, And Storage Medium App 20150188860 - Zhang; Wanying | 2015-07-02 |
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