Downhole hydraulic mechanical lock
US-12553296-B2 · Feb 17, 2026 · US
This page is not indexed by search engines while we improve data quality.
Lai Weichen patents
Lai Weichen is listed as an inventor on 8 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Lai Weichen |
| Total patents | 8 |
| First publication | Jul 13, 2023 |
| Latest publication | Feb 17, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Contraction joint for fiber optics intelligent completion
US-12385329-B2 · Aug 12, 2025 · US
Downhole hydraulic mechanical lock
US-2025154833-A1 · May 15, 2025 · US
Contraction joint for intelligent completion and downhole completion system
US-12281524-B2 · Apr 22, 2025 · US
Autofill, circulation, and production valve for well completion systems
US-12091937-B2 · Sep 17, 2024 · US
Contraction joint for fiber optics intelligent completion
US-2024287857-A1 · Aug 29, 2024 · US
Contraction joint for intelligent completion and downhole completion system
US-2024183229-A1 · Jun 6, 2024 · US
Autofill, circulation, and production valve for well completion systems
US-2023220747-A1 · Jul 13, 2023 · 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 |
|---|---|
| Schlumberger Technology Corp | 8 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B23/00 | 4 |
| E21B17/043 | 4 |
| E21B17/07 | 4 |
| E21B34/14 | 4 |
| E21B17/023 | 2 |