Drag block for a downhole tool
US-2020378196-A1 · Dec 3, 2020 · US
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Doane James patents in 2020
Doane James was listed as an assignee on 5 patent publications in 2020.
| Metric | Value |
|---|---|
| Company | Doane James |
| Year | 2020 |
| Patents | 5 |
Patents
Representative publications for Doane James in 2020.
Packer and system
US-10822910-B2 · Nov 3, 2020 · US
Settable and unsettable device and method
US-10822898-B2 · Nov 3, 2020 · US
Slip arrangement
US-10648276-B2 · May 12, 2020 · US
Packer and system
US-2020040691-A1 · Feb 6, 2020 · US
Top CPC classifications
Most common classification codes for Doane James in 2020.
| CPC | Patents |
|---|---|
| E21B23/01 | 3 |
| E21B17/023 | 2 |
| E21B17/10 | 2 |
| E21B33/1208 | 2 |
| E21B33/122 | 2 |
Related pages
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