Inventor
Zhengqiang Deng
Inventor
Beijing, CN
Overview
Patents· 8 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 elsewhere42%
C07CAcyclic or carbocyclic compounds11%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds11%
C10MLubricating compositions11%
E21BEarth or rock drilling11%
C07DHeterocyclic compounds5%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium5%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions5%
PatentTitleYear
10,442,973Super-amphiphobic strongly self-cleaning high-performance water-based drilling fluid and drilling method201910,308,857Super-amphiphobic composite material and use of the same as inhibitor, lubricant, reservoir protectant, and accelerator in water-based drilling fluids201910,030,188Nano-hybrid lubricant and method thereof, and oil-based drilling fluid201810,000,684Drilling fluid additive composition, and oil-based drilling fluid and use thereof20189,745,501'Additive composition suitable for viscosity reduction of oil-based drilling fluid, oil-based drilling fluid and use thereof'20179,528,042'Drilling fluid additive composition and super high temperature super high density clay-free oil-in-water drilling fluid'20169,481,822'Drilling fluid additive composition and high temperature resistant clay-free whole-oil-based drilling fluid'20169,365,762'Copolymer of dimer acid-organic amine and shear strength improving agent of water in oil emulsion drilling fluid and drilling fluid'2016Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2016–2017Patents assigned to CHINA UNIV OF PETROLEUM (BEIJING) (3)· patent assignee history
2016Patents assigned to UNIV CHINA PETROLEUM (1)· patent assignee history
2016–2019Based in Beijing, CN· patent location history
2018–2019Patents assigned to UNIV CHINA PETROLEUM BEIJING (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV CHINA PETROLEUM BEIJING | 4 | 2018–2019 |
| CHINA UNIV OF PETROLEUM (BEIJING) | 3 | 2016–2017 |
| UNIV CHINA PETROLEUM | 1 | 2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Beijing, CN | 8 | 2016–2019 |