Li; Xianwen

Patent Applications and Registrations

Patent applications and USPTO patent grants for Li; Xianwen.The latest application filed is for "method for lowering oil pipe in gas well without well-killing, soluble bridge plug and material preparation method thereof".

Company Profile

14.7.9

Li; Xianwen - Beijing CN
Li; Xianwen - Shaanxi CN
Li; Xianwen - Changsha CN
LI; Xianwen - Xi'an CN
Li; Xianwen - Beijing City CN

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

Patent Activity

Patent	Date
Method for lowering oil pipe in gas well without well-killing, soluble bridge plug and material preparation method thereof Grant 11,313,192 - Li , et al. April 26, 2	2022-04-26
Injection stimulation agent for water injection well and the preparation method and application thereof Grant 10,975,294 - Mu , et al. April 13, 2	2021-04-13
On-line diverting acid for continuous injection into water injection wells and a preparation method thereof Grant 10,961,442 - Mu , et al. March 30, 2	2021-03-30
Method for in-depth profile control and displacement of low-permeability oil reservoirs Grant 10,920,127 - Wu , et al. February 16, 2	2021-02-16
Chelating agent for reservoir acidification and stimulating injection and its preparation method and application Grant 10,876,043 - Mu , et al. December 29, 2	2020-12-29
pH-responsive amphoteric surfactant n-lauryl-(.alpha.-alkyl)-.beta.-aminopropionic acid and preparation method and uses thereof Grant 10,781,165 - Lai , et al. Sept	2020-09-22
Internet-based intelligent mobile charging system and method Grant 10,661,675 - Yu , et al.	2020-05-26
Method For Lowering Oil Pipe In Gas Well Without Well-killing, Soluble Bridge Plug And Material Preparation Method Thereof App 20200040682 - Li; Xianwen ; et al.	2020-02-06
pH-RESPONSIVE AMPHOTERIC SURFACTANT N-LAURYL-(alpha-ALKYL)-beta-AMINOPROPIONIC ACID AND PREPARATION METHOD AND USES THEREOF App 20190388858 - LAI; Xiaojuan ; et al.	2019-12-26
Chelating Agent For Reservoir Acidification And Stimulating Injection And Its Preparation Method And Application App 20190330519 - MU; Lijun ; et al.	2019-10-31
Injection Stimulation Agent For Water Injection Well And The Preparation Method And Application Thereof App 20190316031 - Mu; Lijun ; et al.	2019-10-17
Method For In-depth Profile Control And Displacement Of Low-permeability Oil Reservoirs App 20190292438 - Wu; Tianjiang ; et al.	2019-09-26
On-Line Diverting Acid For Continuous Injection Into Water Injection Wells And A Preparation Method Thereof App 20190276730 - Mu; Lijun ; et al.	2019-09-12
Diverting Agent For Diversion Acidizing In Water Injection Wells And A Preparation Method Thereof App 20190276731 - Mu; Lijun ; et al.	2019-09-12
Method For Stimulating Oil And Gas Reservoir Volume By Forming Branch Fractures In Main Fracture App 20190242231 - ZHOU; Desheng ; et al.	2019-08-08
Internet-based Intelligent Mobile Charging System And Method App 20180281613 - YU; Xuekun ; et al.	2018-10-04

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