Method to mitigate bit induced vibrations by intentionally modifying mode shapes of drill strings by mass or stiffness changes
US-2015122547-A1 · May 7, 2015 · US
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Tergeist Mathias patents in 2015
Tergeist Mathias was listed as an assignee on 1 patent publication in 2015.
| Metric | Value |
|---|---|
| Company | Tergeist Mathias |
| Year | 2015 |
| Patents | 1 |
Patents
Representative publications for Tergeist Mathias in 2015.
Top CPC classifications
Most common classification codes for Tergeist Mathias in 2015.
| CPC | Patents |
|---|---|
| E21B2200/20 | 1 |
| E21B44/02 | 1 |
| E21B49/003 | 1 |
| E21B7/00 | 1 |
| G06F30/17 | 1 |
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