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Inventor

Daqi Hu

Inventor
CN

Overview

1→
Patents
2025
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.

E21Dprimary
E21DShafts33%
F42DBlasting33%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution33%
PatentTitleYear
12,359,567Blast hole arrangement structure used for blasting for rheological soft-weak surrounding rock tunnel and construction method for rheological soft-weak surrounding rock tunnel2025

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2025Patents assigned to CHINA RAILWAY 18 BUREAU GROUP CO LTD (1)· patent assignee history
2025Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHINA RAILWAY 18 BUREAU GROUP CO LTD12025
Locations
LocationPatentsSpan
CN12025