Inventor

Shangda Chen

Inventor

Beijing, CN

Overview

2→

Patents

1999–2018

Patent span

Fixed constructions

Primary field (CPC E)

Patents· 2 as inventor

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

E05Fprimary

E05FDevices for moving wings into open or closed position33%

E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof33%

E05DHinges or suspension devices for doors, windows or wings17%

Y10TTechnical subjects covered by former us classification17%

PatentTitleYear

9,957,743Slow closing door hinge2018 5,867,866'Door hinge with a built-in damper'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999Based in Qingdao City, Shandong Province, CN· patent location history

2018Patents assigned to CHEN SHANGDA (1)· patent assignee history

2018Patents assigned to CHEN ZHENG (1)· patent assignee history

2018Based in Beijing, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CHEN SHANGDAself	1	2018
CHEN ZHENG	1	2018

Locations

Location	Patents	Span
Beijing, CN	1	2018
Qingdao City, Shandong Province, CN	1	1999