Inventor

QINGJIU CHEN

Inventor
HK

Overview

1→
Patents
2022
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%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022Patents assigned to AIPHOTONICS LTD (1)· patent assignee history
2022Patents assigned to ALPHOTONICS LTD (1)· patent assignee history
2022Based in HK· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AIPHOTONICS LTD12022
ALPHOTONICS LTD12022
Locations
LocationPatentsSpan
HK12022