Pressure actuated ported sub for subterranean cement completions
US-10190390-B2 · Jan 29, 2019 · US
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Putch Robert W patents
Putch Robert W is listed as an inventor on 3 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Putch Robert W |
| Total patents | 3 |
| First publication | Nov 26, 2015 |
| Latest publication | Jan 29, 2019 |
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Baker Hughes Inc | 2 |
| Baker Hughes A Ge Co Llc | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B2034/007 | 3 |
| E21B34/10 | 3 |
| E21B34/102 | 3 |
| E21B23/006 | 3 |
| E21B34/14 | 3 |