Downhole power generation device and separate-zone waterflooding device
US-10890052-B2 · Jan 12, 2021 · US
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Pei Xiaohan patents
Pei Xiaohan is listed as an inventor on 7 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Pei Xiaohan |
| Total patents | 7 |
| First publication | Jan 29, 2015 |
| Latest publication | Jan 12, 2021 |
Notable patents
Publications ranked by popularity score, then publication date.
Downhole power generation device and separate-zone waterflooding device
US-2019292883-A1 · Sep 26, 2019 · US
Bridge type concentric direct reading testing and commissioning instrument
US-9874089-B2 · Jan 23, 2018 · US
Bridge type concentric continuously adjustable water distributor
US-9828831-B2 · Nov 28, 2017 · US
Bridge-type concentric continuously adjustable water distributor
US-2015376984-A1 · Dec 31, 2015 · US
Bridge-type concentric direct reading testing and commissioning instrument
US-2015369039-A1 · Dec 24, 2015 · US
Crude Oil Lifting System and Method Utilizing Vane Pump for Conveying Fluid
US-2015027686-A1 · Jan 29, 2015 · US
Recent patents
Latest publications not already listed above.
No data yet.
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Petrochina Co Ltd | 7 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B43/20 | 6 |
| E21B34/12 | 2 |
| E21B34/14 | 2 |
| E21B2034/007 | 2 |
| E21B2200/06 | 2 |