Li; Zuohui

Patent Applications and Registrations

Patent applications and USPTO patent grants for Li; Zuohui.The latest application filed is for "static push-the-bit rotary guiding device".

Company Profile

1.8.9

Li; Zuohui - Shandong CN
Li; Zuohui - Dongying Shandong
LI; Zuohui - Dongying City 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
Push-the-bit rotary guiding device and application method thereof Grant 10,253,568 - Xiao , et al.	2019-04-09
Static push-the-bit rotary guiding device App 20180223599 - Yang; Jinzhou ; et al.	2018-08-09
Comb polymer, method of preparing the same, and use thereof Grant 9,938,445 - Li , et al. April 10, 2	2018-04-10
Apparatus for well logging capable of forward investigation Grant 9,927,548 - Yang , et al. March 27, 2	2018-03-27
Push-the-bit rotary guiding device and application method thereof App 20170284158 - Hongbing; Xiao ; et al.	2017-10-05
Rotating magnetic field downhole power generation device Grant 9,598,937 - Chen , et al. March 21, 2	2017-03-21
Apparatus And Method For Well Logging And Data Processing Device App 20160274265 - YANG; Jinzhou ; et al.	2016-09-22
Apparatus and method for well logging and data processing device Grant 9,377,555 - Yang , et al. June 28, 2	2016-06-28
Downhole casing expansion tool and method of expanding casings using the same Grant 9,347,297 - Li , et al. May 24, 2	2016-05-24
Comb polymer, method of preparing the same, and use thereof App 20150203736 - LI; Gongrang ; et al.	2015-07-23
Rotating Magnetic Field Downhole Power Generation Device App 20140251592 - Chen; Wei ; et al.	2014-09-11
Downhole Casing Expansion Tool And Method Of Expanding Casings Using The Same App 20140110136 - LI; Zuohui ; et al.	2014-04-24
Apparatus And Method For Well Logging And Data Processing Device App 20130338925 - Yang; Jinzhou ; et al.	2013-12-19

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