Hu; Yuzhu

Patent Applications and Registrations

Patent applications and USPTO patent grants for Hu; Yuzhu.The latest application filed is for "methods for cementing a well using a switchable crossover device".

Company Profile

11.8.7

Hu; Yuzhu - Houston TX
Hu; Yuzhu - Spring TX

*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
Wellbore dart with separable and expandable tool activator Grant 11,384,613 - Gao , et al. July 12, 2	2022-07-12
Systems and methods for controlling fluid flow in a wellbore using a switchable downhole crossover tool Grant 11,313,202 - Gao , et al. April 26, 2	2022-04-26
Switchable crossover tool with hydraulic transmission Grant 11,008,838 - Gao , et al. May 18, 2	2021-05-18
Switchable crossover tool with rotatable chamber Grant 10,914,133 - Gao , et al. February 9, 2	2021-02-09
Cementing indication system Grant 10,808,518 - Gao , et al. October 20, 2	2020-10-20
Methods for cementing a well using a switchable crossover device Grant 10,648,286 - Gao , et al.	2020-05-12
Systems and methods for controlling fluid flow in a wellbore using a switchable downhole crossover tool with rotatable sleeve Grant 10,557,329 - Gao , et al. Feb	2020-02-11
Switchable Crossover Tool with Rotatable Chamber App 20190284914 - Gao; Bo ; et al.	2019-09-19
Methods for Cementing a Well Using a Switchable Crossover Device App 20190284903 - Gao; Bo ; et al.	2019-09-19
Systems And Methods For Controlling Fluid Flow In A Wellbore Using A Switchable Downhole Crossover Tool With Rotatable Sleeve App 20190257175 - Gao; Bo ; et al.	2019-08-22
Systems and method for reverse cementing Grant 10,344,558 - Gao , et al. July 9, 2	2019-07-09
Switchable Crossover Tool With Hydraulic Transmission App 20190178061 - Gao; Bo ; et al.	2019-06-13
Systems and Methods for Controlling Fluid Flow in a Wellbore Using a Switchable Downhole Crossover Tool App 20190169958 - Gao; Bo ; et al.	2019-06-06
Cementing Indication System App 20180283165 - Gao; Bo ; et al.	2018-10-04
Systems and Method for Reverse Cementing App 20180238139 - Gao; Bo ; et al.	2018-08-23

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