Assignee

MARTIN PHILIP G

US2 patents

Top patents by PatentIndex Score

US8757156B2Jun 24, 2014

Face mask with unidirectional multi-flap valve

MARTIN PHILIP G21 citations91

US8967147B2Mar 3, 2015

Filtering face-piece respirator having an auxetic mesh in the mask body

MARTIN PHILIP G16 citations82