Inventor

Xiaole Han

Inventor

Jiangsu, 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 drilling17%

E21CMining or quarrying17%

E21DShafts17%

E21FSafety devices, transport, filling-up, rescue, ventilation, or draining in or of mines or tunnels17%

G01NInvestigating or analysing materials by determining their chemical or physical properties17%

G09BEducational or demonstration appliances17%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2020Patents assigned to UNIV CHINA MINING (2)· patent assignee history

2020Patents assigned to CHINA PINGMEI SHENMA ENERGY AND CHEMICAL IND GROUP CO LTD (1)· patent assignee history

2020Patents assigned to PINGDINGHSAN TIANAN COAL MINING CO LTD (1)· patent assignee history

2020Patents assigned to PINGDINGSHAN TIANAN COAL MINING CO LTD (1)· patent assignee history

2020Patents assigned to XUZHOU ZHONAN SCIENCE&TECHNOLOGY CO LTD (1)· patent assignee history

2020Based in Jiangsu, CN· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
UNIV CHINA MINING	2	2020
CHINA PINGMEI SHENMA ENERGY AND CHEMICAL IND GROUP CO LTD	1	2020
PINGDINGHSAN TIANAN COAL MINING CO LTD	1	2020
PINGDINGSHAN TIANAN COAL MINING CO LTD	1	2020
XUZHOU ZHONAN SCIENCE&TECHNOLOGY CO LTD	1	2020

Locations

Location	Patents	Span
Jiangsu, CN	2	2020