Inventor

FRIDAY DAVID K

US8 patents

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

AVON PROTECTION SYSTEMS INC

3 patents

US7213595B2May 8, 2007

Multi-stage respirator filter with TIM filter option

AVON PROTECTION SYSTEMS INC51 citations93

US7311764B2Dec 25, 2007

Gas mask filter canister

AVON PROTECTION SYSTEMS INC38 citations89

US6860267B2Mar 1, 2005

Self-sealing filter connection and gas mask filter assembly incorporating the same

AVON PROTECTION SYSTEMS INC34 citations88

HUBER CORP J M

2 patents

US7559981B2Jul 14, 2009

Air filtration media comprising oxidizing agent-treated metal-doped silicon-based gel and zeolite materials

HUBER CORP J M16 citations82

US7377965B2May 27, 2008

Air filtration media comprising metal-doped silicon-based gel materials

HUBER CORP J M8 citations72

FRIDAY DAVID K

2 patents

US7115152B2Oct 3, 2006

Four bed regenerable filter system

FRIDAY DAVID K13 citations81

US8292991B2Oct 23, 2012

Gas mask filter canister

FRIDAY DAVID K11 citations79

HUNTER MENUFACTURING CO

1 patent

US7592178B2Sep 22, 2009

Filter integrity tester

HUNTER MENUFACTURING CO16 citations74