Downhole plug apparatus
US-9359863-B2 · Jun 7, 2016 · US
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Webb Earl D patents
Webb Earl D is listed as an inventor on 1 patent in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Webb Earl D |
| Total patents | 1 |
| First publication | Jun 7, 2016 |
| Latest publication | Jun 7, 2016 |
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Halliburton Energy Services Inc | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B33/134 | 1 |
| E21B33/1204 | 1 |