Inventor

BIRLI JOSEPH

US5 patents

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

ULTRA ELECTRONICS AUDIOPACK IN

2 patents

US7457427B2Nov 25, 2008

Dual microphone assembly for mask

ULTRA ELECTRONICS AUDIOPACK IN9 citations80

US7349551B2Mar 25, 2008

Lapel microphone with push to talk switch

ULTRA ELECTRONICS AUDIOPACK IN19 citations79

AUDIOPACK TECHNOLOGIES INC

1 patent

US7089930B2Aug 15, 2006

Wireless heads-up display for a self-contained breathing apparatus

AUDIOPACK TECHNOLOGIES INC88 citations90

MINE SAFETY APPLIANCES CO

1 patent

US7110743B2Sep 19, 2006

Communications device for a protective helmet

MINE SAFETY APPLIANCES CO54 citations89

ULTRA ELECTRONICS AUDIO PACK I

1 patent

US7221966B2May 22, 2007

Wireless communication systems for masks or helmets

ULTRA ELECTRONICS AUDIO PACK I40 citations86