Seat arrangement, method for creating a seat and method for fracturing a borehole
US-9828828-B2 · Nov 28, 2017 · US
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Doane James patents in 2017
Doane James was listed as an assignee on 2 patent publications in 2017.
| Metric | Value |
|---|---|
| Company | Doane James |
| Year | 2017 |
| Patents | 2 |
Patents
Representative publications for Doane James in 2017.
Degradable casing seal construction for downhole applications
US-9777550-B2 · Oct 3, 2017 · US
Top CPC classifications
Most common classification codes for Doane James in 2017.
| CPC | Patents |
|---|---|
| E21B2200/08 | 2 |
| E21B33/1208 | 1 |
| E21B33/128 | 1 |
| E21B33/1285 | 1 |
| E21B34/14 | 1 |
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