Inventor

BILLINGSLEY BRITTON G

US33 patents

⚠️ This page may combine multiple inventors who share the name “BILLINGSLEY BRITTON G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BILLINGSLEY BRITTON G

3M INNOVATIVE PROPERTIES CO

Retroreflective article and method of making same

Clothing bearing retroreflective appliques

Retroreflective article having a colored layer containing a dye covalently bonded to a polymer

Continuous process for making high performance retroreflective fabric

Welding shield with exposure detection for proactive welding hazard avoidance

Optical articles and systems interacting with the same

Method of making a retroreflective applique

Respirator device with light exposure detection

Vision-protective headgear with automatic darkening filter comprising an array of switchable shutters

Protective headgear comprising a curved switchable shutter and comprising multiple antireflective layers

Air filtration device having tuned air distribution system

Air filtration device having subsections lacking fluid communication

Layered or mixed sorbent bed protective filtration device

Curved automatic-darkening filter

Vision-protecting filter lens having organic polymer multilayer and neutral-density optical filter

Protective headgear comprising a curved switchable shutter and comprising multiple antireflective layers

Curved eye protection shield for welding protection

Layered or mixed sorbent bed protective filtration device

Layered or mixed sorbent bed protective filtration device

BILLINGSLEY BRITTON G

Air filtration device having subsections lacking fluid communication

Air filtration device having tuned air distribution system

Method of making filter cartridge having roll-based housing sidewall

Active-particulate air filter having monolith primary filter and polishing filter

Filter element utilizing shaped particle-containing nonwoven web

Refillable filter system

MINNESOTA MINING & MFG

Exposed lens retroreflective article having a polymeric intermediate layer disposed between microspheric and reflective layers

High visibility fabric and safety vest

Clothing bearing retroreflective appliques

Non-woven fluorescent retrorefletive fabric

Removable, high temperature resistant retroreflective marking material

3M INNOVATIVE PROPERTIES COMPANY

Optical articles and systems interacting with the same

Darkening filter comprising a non-uniform pattern of switchable shutters

LEGARE PIERRE

Filter cartridge having central plenum and housing sidewall