Inventor

Gongqiu Zhang

Inventor

Beijing, CN

Overview

2018

Patent span

Fixed constructions

Primary field (CPC E)

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

E05Bprimary

E05BLocks50%

G07CTime or attendance registers50%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2018Patents assigned to YANNAN GUOCHUANG TECH BEIJING CO LTD (1)· patent assignee history

2018Based in Beijing, CN· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
YANNAN GUOCHUANG TECH BEIJING CO LTD	1	2018

Locations

Location	Patents	Span
Beijing, CN	1	2018