Inventor

SIMMONDS EDWARD POWERS

US4 patents

Patents

4 patents

US10105556B2Oct 23, 2018

Respirator filter interface

SCOTT TECH INC2 citations64

US11273334B2Mar 15, 2022

Respirator mask with voice transmittal feature

SCOTT TECH INC0 citations59

US10918894B2Feb 16, 2021

Face seal for respirator mask

SCOTT TECH INC0 citations57

US8979985B2Mar 17, 2015

Conformal split planar flow air purifying filter

SCOTT TECH INC0 citations33