Cai; Qingxi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Cai; Qingxi.The latest application filed is for "hierarchical control method for island power grid energy storage system for increasing new energy generation fluctuation".

Company Profile

4.4.5

Cai; Qingxi - Taizhou Zhejiang
Cai; QingXi - Zhejiang CN
Cai; QingXi - Hangzhou CN

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Hierarchical Control Method For Island Power Grid Energy Storage System For Increasing New Energy Generation Fluctuation App 20210376614 - Yang; Jian ; et al.	2021-12-02
Handrail automatically tensioning system and a method for adjusting tension level of handrail Grant 10,865,074 - Cai , et al. December 15, 2	2020-12-15
Handrail Automatically Tensioning System And A Method For Adjusting Tension Level Of Handrail App 20200087116 - Cai; QingXi ; et al.	2020-03-19
Elevator synchronous door knife Grant 10,427,914 - Zhang , et al. October 1, 2	2019-10-01
Landing-door door lock device Grant 10,189,680 - Yang , et al. Ja	2019-01-29
Elevator Synchronous Door Knife App 20180265332 - Zhang; XiaoBo ; et al.	2018-09-20
Asynchronous door knife of elevator integrated car door lock Grant 10,040,669 - Zhang , et al. August 7, 2	2018-08-07
Landing-door Door Lock Device App 20170267495 - Yang; Yongtao ; et al.	2017-09-21
Asynchronous Door Knife Of Elevator Integrated Car Door Lock App 20160236907 - Zhang; Xiaobo ; et al.	2016-08-18

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