Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Supplied air helmet having face seal with differentiated permeability

Supplied air helmet having face seal with differentiated permeability

US Patent 7197774 · Granted Apr 3, 2007

Estimated economic value: $22,036,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Respirator flow control apparatus and method2025
Maintenance-free respirator that has concave portions on opposing sides of mask 2025
Module for a cellular communications monopole2024
Module for a telecommunications pole2024
Telecommunications antenna mounts and associated transition covers2024
Respirator system including removable head suspension2024
Maintenance-free respirator that has concave portions on opposing sides of mask 2024
Module for a cellular communications monopole2023
Remote interface for digital configuration and security of safety equipment2023
Monopole door hinges and assemblies2023
Dynamic creation and storage of narratives in multiple languages2022
Respirator flow control apparatus and method2021