Shale inhibitors used in the water-based fluid for shale formation
US-2019382642-A1 · Dec 19, 2019 · US
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Cnpc Usa Corp patents in 2019
Cnpc Usa Corp was listed as an assignee on 14 patent publications in 2019.
| Metric | Value |
|---|---|
| Company | Cnpc Usa Corp |
| Year | 2019 |
| Patents | 14 |
Patents
Representative publications for Cnpc Usa Corp in 2019.
Tool assembly with a fluidic agitator
US-10450819-B2 · Oct 22, 2019 · US
Method for a fracturing fluid system at high temperatures
US-10450501-B2 · Oct 22, 2019 · US
Millable bridge plug system
US-10415345-B2 · Sep 17, 2019 · US
Polymer system for fluid loss control
US-2019256759-A1 · Aug 22, 2019 · US
Top CPC classifications
Most common classification codes for Cnpc Usa Corp in 2019.
| CPC | Patents |
|---|---|
| C09K8/035 | 3 |
| C09K8/12 | 3 |
| C08F220/56 | 2 |
| C08L33/26 | 2 |
| C08L41/00 | 2 |
Related pages
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