Drilling advisory systems and methods to filter data
US-9482084-B2 · Nov 1, 2016 · US
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Chang Dar-Lon patents in 2016
Chang Dar-Lon was listed as an assignee on 3 patent publications in 2016.
| Metric | Value |
|---|---|
| Company | Chang Dar-Lon |
| Year | 2016 |
| Patents | 3 |
Patents
Representative publications for Chang Dar-Lon in 2016.
Top CPC classifications
Most common classification codes for Chang Dar-Lon in 2016.
| CPC | Patents |
|---|---|
| E21B44/00 | 3 |
| G05B13/00 | 2 |
| G05B13/024 | 2 |
| G05B19/0405 | 2 |
| E21B45/00 | 1 |
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