Inventor
Xianzhu Wu
Inventor
Beijing, CN
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere52%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds19%
C08BPolysaccharides10%
C08LCompositions of macromolecular compounds10%
C07CAcyclic or carbocyclic compounds5%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%
PatentTitleYear
10,336,931Use of dual-cation fluorocarbon surfactant as amphiphobic wettability reversal agent in drilling fluid201910,266,744Accelerator used for drilling fluids, water-based drilling fluid and usage thereof201910,253,237Film former used for coal-bed gas well drilling and preparation method thereof, drilling fluid and usage thereof20199,834,717Drilling fluid additive composition and pseudo oil-based drilling fluid suitable for horizontal shale gas wells20179,790,417'High-density water-based drilling fluid suitable for horizontal shale gas wells'20179,783,726'Environment-friendly water-based drilling fluid applicable to horizontal shale gas wells'20179,783,725'Drilling fluid additive composition and water-based drilling fluid suitable for horizontal shale gas wells'20179,528,041'Bionic drilling fluid and preparation method thereof'20169,410,068'Method for preparation of biomimetic polymer for stabilizing wellbore and drilling fluid'20169,410,067'Biomimetic polymer for stabilizing wellbore and method for preparation of the same and drilling fluid'20169,399,692'Amphiphilic reservoir protecting agent and preparation method thereof and drilling fluid'2016Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2016–2017Patents assigned to CHINA UNIV OF PETROLEUM (BEIJING) (8)· patent assignee history
2016–2019Based in Beijing, CN· patent location history
2016–2019Based in Chengdu, CN· patent location history
2019Patents assigned to UNIV CHINA PETROLEUM BEIJING (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHINA UNIV OF PETROLEUM (BEIJING) | 8 | 2016–2017 |
| UNIV CHINA PETROLEUM BEIJING | 3 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Beijing, CN | 7 | 2016–2019 |
| Chengdu, CN | 4 | 2016–2019 |