Lost-circulation materials of two different types of fibers
US-9932510-B2 · Apr 3, 2018 · US
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Walker Jonathan P patents
Walker Jonathan P is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Walker Jonathan P |
| Total patents | 2 |
| First publication | Jun 15, 2017 |
| Latest publication | Apr 3, 2018 |
Notable patents
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Lost-circulation materials of two different types of fibers
US-2017166795-A1 · Jun 15, 2017 · US
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Halliburton Energy Services Inc | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C09K8/502 | 2 |
| C09K8/035 | 2 |
| E21B21/003 | 2 |
| E21B43/26 | 2 |
| E21B33/138 | 2 |