Inventor

Enci CHANG

Inventor

Overview

2025

Patent span

Fixed constructions

Primary field (CPC E)

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

E06Bprimary

E06BFixed or movable closures for openings in buildings, vehicles, fences or like enclosures in general, e.g. doors, windows, blinds, gates100%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2025Patents assigned to QINGDAO SEA NOVA BUILDING PROFILES PRODUCTS CO LTD (1)· patent assignee history

2025Based in CN· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
QINGDAO SEA NOVA BUILDING PROFILES PRODUCTS CO LTD	1	2025

Locations

Location	Patents	Span
CN	1	2025