Inventor

CHING TSZ KUEN

US3 patents

Patents

3 patents

US9414219B2Aug 9, 2016

Detecting carriers for mobile devices

FACEBOOK INC7 citations78

US10104154B2Oct 16, 2018

Detecting carriers for mobile devices

FACEBOOK INC0 citations46

US9679313B2Jun 13, 2017

Detecting carriers for mobile devices

FACEBOOK INC0 citations46