Inventor

Lewen Chang

Inventor

Overview

1→

Patents

2023

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 1 as inventor

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

F21Sprimary

F21SNon-portable lighting devices33%

F21VFunctional features or details of lighting devices or systems thereof33%

F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted33%

PatentTitleYear

11,566,758Luminaire2023

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2023Patents assigned to TIJO LIGHTING NINGBO CO LTD (1)· patent assignee history

2023Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TIJO LIGHTING NINGBO CO LTD	1	2023

Locations

Location	Patents	Span
CN	1	2023