Polycrystalline diamond compact cutter
US-9840876-B2 · Dec 12, 2017 · US
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Cnpc Usa Corp patents in 2017
Cnpc Usa Corp was listed as an assignee on 8 patent publications in 2017.
| Metric | Value |
|---|---|
| Company | Cnpc Usa Corp |
| Year | 2017 |
| Patents | 8 |
Patents
Representative publications for Cnpc Usa Corp in 2017.
Method of testing a polycrystalline diamond compact cutter
US-9746403-B2 · Aug 29, 2017 · US
Method of testing a polycrystalline diamond compact cutter
US-9746403-B2 · Aug 29, 2017 · US
Thinner for oil-based drilling fluids
US-2017145281-A1 · May 25, 2017 · US
Thinner for oil-based drilling fluids
US-2017145286-A1 · May 25, 2017 · US
Top CPC classifications
Most common classification codes for Cnpc Usa Corp in 2017.
| CPC | Patents |
|---|---|
| C09K8/035 | 4 |
| C08F220/56 | 2 |
| C09K8/32 | 2 |
| C09K8/36 | 2 |
| E21B10/56 | 2 |
Related pages
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