Inventor
STEIN DAVID R
US10 patents
⚠️ This page may combine multiple inventors who share the name “STEIN DAVID R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
3M INNOVATIVE PROPERTIES COMPANY
5 patentsUS11933453B2Mar 19, 2024
Dynamically determining safety equipment for dynamically changing environments
3M INNOVATIVE PROPERTIES COMPANY9 citations79
US12128259B2Oct 29, 2024
Respirator negative pressure fit check devices and methods
3M INNOVATIVE PROPERTIES COMPANY1 citations62
US12472391B2Nov 18, 2025
Personal protective equipment safety system using contextual information from industrial control systems
3M INNOVATIVE PROPERTIES COMPANY0 citations61
US12168150B2Dec 17, 2024
Personal protective equipment safety system using contextual information from industrial control systems
3M INNOVATIVE PROPERTIES COMPANY1 citations61
US11534632B2Dec 27, 2022
Fit-test method for respirator with sensing system
3M INNOVATIVE PROPERTIES COMPANY1 citations60
3M INNOVATIVE PROPERTIES CO
4 patentsUSD787660SMay 23, 2017
Respirator mask having a face seal flexing region
3M INNOVATIVE PROPERTIES CO9 citations83
US11052268B2Jul 6, 2021
Respirator negative pressure fit check devices and methods
3M INNOVATIVE PROPERTIES CO5 citations72
US10765176B2Sep 8, 2020
Personal protective device strap connecting buckle assembly
3M INNOVATIVE PROPERTIES CO3 citations72
US9950202B2Apr 24, 2018
Respirator negative pressure fit check devices and methods
3M INNOVATIVE PROPERTIES CO6 citations72