Riser handling on a drilling rig and a flip and service machine for riser handling on a drilling rig
US-9759021-B2 · Sep 12, 2017 · US
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Smidth Frederik patents
Smidth Frederik is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Smidth Frederik |
| Total patents | 2 |
| First publication | Mar 31, 2016 |
| Latest publication | Sep 12, 2017 |
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Maersk Drilling As | 3 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B19/155 | 2 |
| B63B35/4413 | 2 |
| E21B19/086 | 2 |
| E21B19/08 | 1 |