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Inventor

Xu QIAN

Inventor
CN

Overview

1→
Patents
2025
Patent span
Physics
Primary field (CPC G)

Patents· 1 as inventor

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

G01Sprimary
G01SRadio direction-finding50%
G05DSystems for controlling or regulating non-electric variables50%
PatentTitleYear
12,321,167Moving target positioning capability testing device and testing method for coal mine2025

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2025Patents assigned to CHINA COAL TECH & ENGINEERING GROUP SHENYANG ENGINEERING COMPANY (1)· patent assignee history
2025Patents assigned to CHINA COAL TECHNOLOGY&ENG GROUP SHENYANG ENG COMPANY (1)· patent assignee history
2025Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHINA COAL TECH & ENGINEERING GROUP SHENYANG ENGINEERING COMPANY12025
CHINA COAL TECHNOLOGY&ENG GROUP SHENYANG ENG COMPANY12025
Locations
LocationPatentsSpan
CN12025