Apparatus and method for drilling wellbores based on mechanical specific energy determined from bit-based weight and torque sensors
US-9920614-B2 · Mar 20, 2018 · US
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Sullivan Eric patents in 2018
Sullivan Eric was listed as an assignee on 1 patent publication in 2018.
| Metric | Value |
|---|---|
| Company | Sullivan Eric |
| Year | 2018 |
| Patents | 1 |
Patents
Representative publications for Sullivan Eric in 2018.
Top CPC classifications
Most common classification codes for Sullivan Eric in 2018.
| CPC | Patents |
|---|---|
| E21B45/00 | 1 |
| E21B47/013 | 1 |
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