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Inventor

Shiliang Wu

Inventor
Xuzhou, CN

Overview

1→
Patents
2020
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%
E21FSafety devices, transport, filling-up, rescue, ventilation, or draining in or of mines or tunnels50%
PatentTitleYear
10,577,891Using horizontal directional drilling and liquid nitrogen cyclic freeze-thaw process to improve permeability in gas drainage2020

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2020Patents assigned to SCIENCE ACADEMY OF CHINA UNIV OF MINING (1)· patent assignee history
2020Patents assigned to SCIENCE ACADEMY OF CHINA UNIV OF MINING AND TECHNOLOGY (1)· patent assignee history
2020Based in Xuzhou, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SCIENCE ACADEMY OF CHINA UNIV OF MINING12020
SCIENCE ACADEMY OF CHINA UNIV OF MINING AND TECHNOLOGY12020
Locations
LocationPatentsSpan
Xuzhou, CN12020