Inventor
BLOMBERG DAVID M
US46 patents
⚠️ This page may combine multiple inventors who share the name “BLOMBERG DAVID M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
3M INNOVATIVE PROPERTIES CO
31 patentsUS6575165B1Jun 10, 2003
Apparatus and method for breathing apparatus component coupling
3M INNOVATIVE PROPERTIES CO163 citations97
USD676527SFeb 19, 2013
Unidirectional valve
3M INNOVATIVE PROPERTIES CO41 citations94
USD795416SAug 22, 2017
Respirator mask
3M INNOVATIVE PROPERTIES CO17 citations92
US9814913B2Nov 14, 2017
Respirator with floating elastomeric sleeve
3M INNOVATIVE PROPERTIES CO12 citations84
USD795415SAug 22, 2017
Respirator cartridge having an engagement latch
3M INNOVATIVE PROPERTIES CO15 citations84
US9517367B2Dec 13, 2016
Respiratory mask having a clean air inlet chamber
3M INNOVATIVE PROPERTIES CO12 citations84
US9510626B2Dec 6, 2016
Sleeve-fit respirator cartridge
3M INNOVATIVE PROPERTIES CO14 citations84
USD759807SJun 21, 2016
Respirator mask exhalation port
3M INNOVATIVE PROPERTIES CO6 citations84
USD757928SMay 31, 2016
Respirator cartridge body
3M INNOVATIVE PROPERTIES CO9 citations84
USD746437SDec 29, 2015
Respirator mask having a communication grille
3M INNOVATIVE PROPERTIES CO11 citations84
USD778430SFeb 7, 2017
Filter cartridge
3M INNOVATIVE PROPERTIES CO8 citations83
USD786443SMay 9, 2017
Filter element
3M INNOVATIVE PROPERTIES CO12 citations82
USD779674SFeb 21, 2017
Filter element having a connector
3M INNOVATIVE PROPERTIES CO9 citations81
US10786692B2Sep 29, 2020
Respirator with floating elastomeric sleeve
3M INNOVATIVE PROPERTIES CO2 citations73
US10391338B2Aug 27, 2019
Sleeve-fit respirator cartridge
3M INNOVATIVE PROPERTIES CO5 citations73
US9247788B2Feb 2, 2016
Personal protective equipment strap retaining devices
3M INNOVATIVE PROPERTIES CO4 citations73
USD747470SJan 12, 2016
Respirator cartridge connector
3M INNOVATIVE PROPERTIES CO4 citations73
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
US9744328B2Aug 29, 2017
Air filtration device having tuned air distribution system
3M INNOVATIVE PROPERTIES CO4 citations72
US9744329B2Aug 29, 2017
Air filtration device having subsections lacking fluid communication
3M INNOVATIVE PROPERTIES CO4 citations72
USD754844SApr 26, 2016
Respirator mask
3M INNOVATIVE PROPERTIES CO2 citations63
US11219787B2Jan 11, 2022
Respirator fit check sealing devices and methods
3M INNOVATIVE PROPERTIES CO0 citations62
USD741475SOct 20, 2015
Respirator mask having a communication grille
3M INNOVATIVE PROPERTIES CO2 citations62
USD767116SSep 20, 2016
Respirator mask having an exhalation port
3M INNOVATIVE PROPERTIES CO1 citations52
US9259058B2Feb 16, 2016
Personal protective equipment strap retaining devices
3M INNOVATIVE PROPERTIES CO1 citations52
USD743536SNov 17, 2015
Respirator mask having a circular button
3M INNOVATIVE PROPERTIES CO0 citations52
USD742504SNov 3, 2015
Respirator mask
3M INNOVATIVE PROPERTIES CO1 citations52
USD747795SJan 19, 2016
Respirator mask body
3M INNOVATIVE PROPERTIES CO1 citations51
USD744088SNov 24, 2015
Respirator mask having a circular button
3M INNOVATIVE PROPERTIES CO1 citations51
3M INNOVATIVE PROPERTIES COMPANY
9 patentsUSD1095456SSep 30, 2025
Cable guide
3M INNOVATIVE PROPERTIES COMPANY1 citations74
USD1055002SDec 24, 2024
Cable guide
3M INNOVATIVE PROPERTIES COMPANY3 citations74
USD1035593SJul 16, 2024
Cable guide
3M INNOVATIVE PROPERTIES COMPANY3 citations74
USD1068124SMar 25, 2025
Bracket for headgear
3M INNOVATIVE PROPERTIES COMPANY1 citations63
USD1105004SDec 9, 2025
Cable guide
3M INNOVATIVE PROPERTIES COMPANY0 citations62
USD1053463SDec 3, 2024
Accessory bracket for headgear
3M INNOVATIVE PROPERTIES COMPANY1 citations62
US12128259B2Oct 29, 2024
Respirator negative pressure fit check devices and methods
3M INNOVATIVE PROPERTIES COMPANY1 citations62
US11865375B2Jan 9, 2024
Respirator fit check sealing devices and methods
3M INNOVATIVE PROPERTIES COMPANY0 citations62
US11571591B2Feb 7, 2023
Respirator with floating elastomeric sleeve
3M INNOVATIVE PROPERTIES COMPANY0 citations62
ABEL NATHAN A
3 patentsUSD696629SDec 31, 2013
Large battery pack for powered air purifying respirator (PAPR)
ABEL NATHAN A2 citations62
USD690414SSep 24, 2013
Powered air purifying respirator (PAPR) having control panel
ABEL NATHAN A2 citations62
USD684536SJun 18, 2013
Small battery pack for powered air purifying respirator
ABEL NATHAN A2 citations62