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Liu Huailiang patents

Liu Huailiang is listed as an inventor on 6 patents in our database. Major assignees and classification codes are summarized below.

Inventor statistics
MetricValue
InventorLiu Huailiang
Total patents6
First publicationApr 9, 2024
Latest publicationSep 11, 2025

Notable patents

Publications ranked by popularity score, then publication date.

Recent patents

Latest publications not already listed above.

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Major assignees

Companies most often associated with this inventor's publications.

Top assignees for this inventor
AssigneePatents
Cnpc Usa Corp6
Beijing Huamei Inc6
China Nat Petroleum Corp6
Beijing Huamel Inc1

Top CPC classifications

Most common classification codes across this inventor's patents.

Top CPC codes for this inventor
CPCPatents
E21B2200/083
E21B33/122
C09K8/402
C10M105/762
C10M107/002