LexDanaLexDanabeta
Inventor

JINYAN LIANG

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 drilling33%
E21CMining or quarrying33%
E21FSafety devices, transport, filling-up, rescue, ventilation, or draining in or of mines or tunnels33%
PatentTitleYear
11,970,945Hole protection system and method for coal seam slotting and fracturing combined drainage2024

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2024Patents assigned to HANCHENG ZAOZHUANG IND CO LTD (1)· patent assignee history
2024Patents assigned to UNIV CHONGQING (1)· patent assignee history
2024Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HANCHENG ZAOZHUANG IND CO LTD12024
UNIV CHONGQING12024
Locations
LocationPatentsSpan
CN12024