Inventor

Houjin Chen

Inventor

Beijing, CN

Overview

2020

Patent span

Physics

Primary field (CPC G)

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

G06Fprimary

G06FElectric digital data processing33%

G09BEducational or demonstration appliances33%

G09FDisplaying33%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2020Patents assigned to CHINA BRAILLE PRESS (1)· patent assignee history

2020Patents assigned to UNIV BEIJING JIAOTONG (1)· patent assignee history

2020Based in Beijing, CN· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CHINA BRAILLE PRESS	1	2020
UNIV BEIJING JIAOTONG	1	2020

Locations

Location	Patents	Span
Beijing, CN	1	2020