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Inventor

DUFFY JR WILLIAM J

US8 patents
⚠️ This page may combine multiple inventors who share the name “DUFFY JR WILLIAM J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ILLINOIS TOOL WORKS

3 patents
US5535969AJul 16, 1996

Fold over scissors clip

ILLINOIS TOOL WORKS132 citations96
US5393185AFeb 28, 1995

Push-in fastener having fins with work-piece engagement ribs

ILLINOIS TOOL WORKS51 citations91
US5290137AMar 1, 1994

Pin bushing

ILLINOIS TOOL WORKS17 citations72

INVISIBLE FENCE CO INC

3 patents
US5476729ADec 19, 1995

Electronic device having a removable battery pack assembly

INVISIBLE FENCE CO INC57 citations93
US5445900AAug 29, 1995

Electronic device having a removable battery pack assembly

INVISIBLE FENCE CO INC78 citations93
US5533469AJul 9, 1996

Programming apparatus for programmable animal control device

INVISIBLE FENCE CO INC34 citations92

MILLER EDGE INC

2 patents
US10246927B2Apr 2, 2019

Sensing edge

MILLER EDGE INC3 citations70
US12429179B2Sep 30, 2025

Illuminated sensing edge assembly for swing gate barrier system

MILLER EDGE INC0 citations57