Riser-less managed pressure operations
US-12467330-B2 · Nov 11, 2025 · US
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Hooker John D patents
Hooker John D is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Hooker John D |
| Total patents | 2 |
| First publication | Mar 6, 2025 |
| Latest publication | Nov 11, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Riser-less managed pressure operations
US-2025075580-A1 · Mar 6, 2025 · US
Recent patents
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Weatherford Tech Holdings Llc | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B37/00 | 2 |
| E21B21/08 | 2 |
| E21B33/064 | 2 |
| E21B33/038 | 2 |
| E21B21/085 | 2 |