Inventor

Jiangong Wei

Inventor

Guangzhou, CN

Overview

2020

Patent span

Fixed constructions

Primary field (CPC E)

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

E21Bprimary

E21BEarth or rock drilling100%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2020Patents assigned to Guangzhou Marine Geological Survey (1)· patent assignee history

2020Based in Guangzhou, CN· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
Guangzhou Marine Geological Survey	1	2020

Locations

Location	Patents	Span
Guangzhou, CN	1	2020