LexDanaLexDanabeta
Inventor

WENHE XIA

Inventor
CN

Overview

2→
Patents
2024
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

E21Bprimary
E21BEarth or rock drilling40%
Y02PClimate change mitigation technologies in the production or processing of goods40%
G05DSystems for controlling or regulating non-electric variables20%
PatentTitleYear
12,146,374Active intelligent wellbore pressure control system202412,024,961Remote intelligent active drilling pressure control system and method2024

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2024Patents assigned to UNIV SOUTHWEST PETROLEUM (2)· patent assignee history
2024Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNIV SOUTHWEST PETROLEUM22024
Locations
LocationPatentsSpan
CN22024