Pressure differential plug and method
US-2018355694-A1 · Dec 13, 2018 · US
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Doane James patents in 2018
Doane James was listed as an assignee on 13 patent publications in 2018.
| Metric | Value |
|---|---|
| Company | Doane James |
| Year | 2018 |
| Patents | 13 |
Patents
Representative publications for Doane James in 2018.
Pressure-triggered degradable-on-command component of a downhole tool and method
US-2018291699-A1 · Oct 11, 2018 · US
Downhole tools having controlled degradation and method
US-2018283141-A1 · Oct 4, 2018 · US
Downhole tools having controlled degradation and method
US-2018283121-A1 · Oct 4, 2018 · US
Downhole tools having controlled degradation and method
US-2018283142-A1 · Oct 4, 2018 · US
Top CPC classifications
Most common classification codes for Doane James in 2018.
| CPC | Patents |
|---|---|
| E21B33/12 | 8 |
| E21B29/02 | 7 |
| E21B43/26 | 5 |
| E21B2200/08 | 4 |
| E21B47/00 | 4 |
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