Annular isolation device for managed pressure drilling
US-10012044-B2 · Jul 3, 2018 · US
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Leal Jerlib J patents
Leal Jerlib J is listed as an inventor on 3 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Leal Jerlib J |
| Total patents | 3 |
| First publication | Aug 27, 2015 |
| Latest publication | Jul 3, 2018 |
Notable patents
Publications ranked by popularity score, then publication date.
Continuous flow system for drilling oil and gas wells
US-10006262-B2 · Jun 26, 2018 · US
Continuous flow system for drilling oil and gas wells
US-2015240582-A1 · Aug 27, 2015 · US
Recent patents
Latest publications not already listed above.
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Weatherford Tech Holdings Llc | 2 |
| Weatherford Tech Holding Llc | 1 |
| Weatherford Lamb | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B3/00 | 2 |
| E21B21/06 | 2 |
| E21B19/16 | 2 |
| E21B21/106 | 2 |
| E21B2034/007 | 2 |