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Inventor

Yaofeng Qiu

Inventor
Shenzhen, CN

Overview

3→
Patents
2004–2021
Patent span
LOC
Primary field

Patents· 3 as inventor

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

LOC14primary
LOC1467%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein33%
PatentTitleYear
D0931849Phone holder2021D0931270Phone holder20216,750,940'Liquid crystal based optical switch utilizing diffraction'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004Patents assigned to BAO TONG INTERNAT TELECOMM HOL (1)· patent assignee history
2004Based in Shanghai, CN· patent location history
2021Patents assigned to SHENZHEN GUB BIKE TRADING CO LTD (2)· patent assignee history
2021Based in Shenzhen, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHENZHEN GUB BIKE TRADING CO LTD22021
BAO TONG INTERNAT TELECOMM HOL12004
Locations
LocationPatentsSpan
Shenzhen, CN22021
Shanghai, CN12004