Apparatus for preventing and controlling secondary generation of hydrates in wellbore during depressurization exploitation of offshore natural gas hydrates and prevention and control method
US-12000245-B2 · Jun 4, 2024 · US
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Kong Qingwen patents
Kong Qingwen is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Kong Qingwen |
| Total patents | 2 |
| First publication | Mar 14, 2024 |
| Latest publication | Jun 4, 2024 |
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Univ China Petroleum East China | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B41/0099 | 2 |
| E21B43/01 | 2 |
| E21B43/16 | 2 |
| E21B47/00 | 2 |
| E21B47/06 | 2 |