Inventor

Vaught David

US3 patents

Patents

3 patents

US9704489B2Jul 11, 2017

Portable acoustical unit for voice recognition

AT & T IP I LP5 citations77

US10958468B2Mar 23, 2021

Portable acoustical unit

AT & T IP I LP0 citations56

US10091021B2Oct 2, 2018

Portable acoustical unit

AT & T IP I LP0 citations45