Inventor

LINDSKOG DAVID

US3 patents

Patents

3 patents

US9646597B1May 9, 2017

Delivery sound masking and sound emission

AMAZON TECH INC32 citations92

US10102493B1Oct 16, 2018

Delivery sound masking and sound emission

AMAZON TECH INC2 citations71

US11232389B1Jan 25, 2022

Delivery sound masking and sound emission

AMAZON TECH INC0 citations60