Inventor
SYNN DONGYEUP D
US4 patents
Patents
4 patentsUS9906636B2Feb 27, 2018
Intelligent earplug system
HUSH TECH INC2 citations68
US10354509B2Jul 16, 2019
Intelligent earplug system
HUSH TECH INC0 citations47
US10027787B2Jul 17, 2018
Intelligent earplug system
HUSH TECH INC0 citations47
US9799188B2Oct 24, 2017
Intelligent earplug system
HUSH TECH INC0 citations47