Assignee
DUFFY WILLIAM CHRISTOPHER
CA·6 granted patents·1 pending application·115 citations·filing 2003–2015
Top patents by PatentIndex Score
7 records- 0194US9074788B2Fire-rated modular duct assembly suitable for exhausting flammable or hazardous gases, vapours and other materialsDUFFY WILLIAM CHRISTOPHER·Filed 2012·Granted Jul 7, 2015·18 cites·14 claims
- 0290US9557071B2Fire-rated modular duct assembly suitable for exhausting flammable or hazardous gases, vapours and other materialsDUFFY WILLIAM CHRISTOPHER·Filed 2015·Granted Jan 31, 2017·5 cites·12 claims
- 0390US7195290B2Apparatus for a fire-rated ductDUFFY WILLIAM CHRISTOPHER·Filed 2003·Granted Mar 27, 2007·49 cites·16 claims
- 0484US8276319B2Fire resistant access panel for ducts and air handling equipmentDUFFY WILLIAM CHRISTOPHER·Filed 2007·Granted Oct 2, 2012·15 cites·13 claims
- 0583US8178781B2Apparatus for protecting cable trays, conduits and/or cablesDUFFY WILLIAM CHRISTOPHER·Filed 2009·Granted May 15, 2012·22 cites·6 claims
- 0678US10024569B2Fire-rated modular duct assembly and improvements thereinDUFFY WILLIAM CHRISTOPHER·Filed 2013·Granted Jul 17, 2018·6 cites·20 claims
- 0759US2010108438A1Panel for acoustic damping and fire protection applicationsDUFFY WILLIAM CHRISTOPHER·Filed 2008·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when DUFFY WILLIAM CHRISTOPHER files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →