Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Active-particulate air filter having monolith primary filter and polishing filter

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

US Patent 8617295 · Granted Dec 31, 2013

Estimated economic value: $23,354,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Optical articles and systems interacting with the same2024
Darkening filter comprising a non-uniform pattern of switchable shutters2024
Protective headgear comprising a curved switchable shutter and comprising multip2022
Optical articles and systems interacting with the same2022
Respirator device with light exposure detection2022
Vision-protective headgear with automatic darkening filter comprising an array o2021
Curved eye protection shield for welding protection2021
Vision-protecting filter lens having organic polymer multilayer and neutral-dens2021
Welding shield with exposure detection for proactive welding hazard avoidance2020
Protective headgear comprising a curved switchable shutter and comprising multip2020
Curved automatic-darkening filter2018
Layered or mixed sorbent bed protective filtration device2018