Pipe in pipe BHA electric drive motor
US-9752385-B2 · Sep 5, 2017 · US
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Holtzman Keith E patents
Holtzman Keith E is listed as an inventor on 3 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Holtzman Keith E |
| Total patents | 3 |
| First publication | Mar 12, 2015 |
| Latest publication | Sep 5, 2017 |
Notable patents
Publications ranked by popularity score, then publication date.
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 |
|---|---|
| Halliburton Energy Services Inc | 2 |
| Halliburton Energy Serv Inc | 1 |
| Hay Richard Thomas | 1 |
| Holtzman Keith E | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B7/00 | 2 |
| E21B47/12 | 2 |
| E21B41/0092 | 2 |
| E21B43/26 | 2 |
| E21B41/00 | 2 |