Downhole throttling device based on wireless control
US-11946349-B2 · Apr 2, 2024 · US
This page is not indexed by search engines while we improve data quality.
Zhong Haifeng patents
Zhong Haifeng is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Zhong Haifeng |
| Total patents | 2 |
| First publication | Jun 30, 2022 |
| Latest publication | Apr 2, 2024 |
Notable patents
Publications ranked by popularity score, then publication date.
Downhole throttling device based on wireless control
US-2022205346-A1 · Jun 30, 2022 · 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 | 2 |
| Sichuan Shengnuo Oil And Gas Engineering Tech Service Co Ltd | 1 |
| Sichuan Shengnuo Oil And Gas Engineering Tech Service Co Ltd | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B34/066 | 2 |
| E21B2200/02 | 2 |
| E21B34/14 | 2 |
| E21B43/123 | 2 |
| E21B43/12 | 2 |