LexDanaLexDanabeta
Inventor

JINKUI MA

Inventor
CN

Overview

1→
Patents
2024
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 1 as inventor

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

E21Bprimary
E21BEarth or rock drilling50%
G01MTesting static or dynamic balance of machines or structures50%
PatentTitleYear
12,140,013Sealing quality detection device and sealing quality evaluating method for gas extraction boreholes2024

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2024Patents assigned to CHINA COAL TECH & ENGINEERING GROUP SHENYANG ENGINEERING COMPANY (1)· patent assignee history
2024Based 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 COMPANY12024
Locations
LocationPatentsSpan
CN12024