Rotary drill bits with back-up cutting elements to optimize bit life
US-2015152689-A1 · Jun 4, 2015 · US
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Arfele Robert W patents in 2015
Arfele Robert W was listed as an assignee on 1 patent publication in 2015.
| Metric | Value |
|---|---|
| Company | Arfele Robert W |
| Year | 2015 |
| Patents | 1 |
Patents
Representative publications for Arfele Robert W in 2015.
Top CPC classifications
Most common classification codes for Arfele Robert W in 2015.
| CPC | Patents |
|---|---|
| E21B10/00 | 1 |
| E21B10/16 | 1 |
| E21B10/43 | 1 |
| E21B10/55 | 1 |
| G06F17/5086 | 1 |
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