SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING

Patent Applications and Registrations

Patent applications and USPTO patent grants for SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING.The latest application filed is for "downhole auxiliary drilling apparatus".

Company Profile

7.13.9

SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING - Beijing 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
Downhole auxiliary drilling apparatus Grant 10,927,612 - Zeng , et al. February 23, 2	2021-02-23
Random copolymer and preparation method thereof, and drilling fluid Grant 10,774,257 - Lin , et al. Sept	2020-09-15
Resistivity measurement while drilling device and method Grant 10,571,596 - Zeng , et al. Feb	2020-02-25
Maleamic acid monomer and preparation method and use thereof Grant 10,538,484 - Yang , et al. Ja	2020-01-21
Downhole Auxiliary Drilling Apparatus App 20190330931 - ZENG; Yijin ; et al.	2019-10-31
Random Copolymer and Preparation Method Thereof, and Drilling Fluid App 20190092997 - LIN; Yongxue ; et al.	2019-03-28
Composition and use therof, oil-based drilling fluid and a method for raising shearing force of oil-based drilling fluid Grant 10,150,903 - Lin , et al. Dec	2018-12-11
Resistivity Measurement While Drilling Device And Method App 20180045847 - ZENG; Yijin ; et al.	2018-02-15
Data transmission system and method for transmission of downhole measurement-while-drilling data to ground Grant 9,739,141 - Zeng , et al. August 22, 2	2017-08-22
Data Transmission System and Method for Transmission of Downhole Measurement-While-Drilling Data to Ground App 20160115783 - Zeng; Yijin ; et al.	2016-04-28
Filtration control agent and a drilling fluid containing the same Grant 9,243,180 - Yang , et al. January 26, 2	2016-01-26
Modified Starch, Preparation Method And Use Of The Same, And Drilling Fluid App 20140186626 - WANG; Zhifa ; et al.	2014-07-03
Copolymer and preparation method and application thereof Grant 8,623,791 - Yang , et al. January 7, 2	2014-01-07
Dispersant And A Drilling Fluid Containing The Same App 20130079257 - Lin; Yongxue ; et al.	2013-03-28
Filtration Control Agent And A Drilling Fluid Containing The Same App 20130079256 - YANG; Xiaohua ; et al.	2013-03-28
Copolymer And Preparation Method And Application Thereof App 20120077718 - YANG; Xiaohua ; et al.	2012-03-29

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