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Inventor profile of:

WILLIAM CHRISTOPHER DUFFY

City:

THORNHILL

Country:

Canada

Published Applications:

Last publication date:

2025-02-13

Top Assignees for applications by WILLIAM CHRISTOPHER DUFFY

The entities that hold a legal rights for patent applications filed by inventor DUFFY WILLIAM CHRISTOPHER:

VAUGHANAIR CANADA ULC 2 Crofton, MD United States
DURASYSTEMS BARRIERS INC. 1 Vaughan, Canada
Durasystems Barriers, Inc. 1 St. James, Barbados

Recent patent applications by DUFFY WILLIAM CHRISTOPHER

WILLIAM CHRISTOPHER DUFFY from THORNHILL, CA has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2025-02-13

US20250052445A1

Mechanical engineering

FIRE-RATED VENTILATION DUCT AND IMPROVEMENTS THEREIN

#2 | 2022-12-22

US20220404063A1

Mechanical engineering

Pre-fabricated modular fire-rated conduit assembly

#3 | 2022-08-25

US20220268480A1

Mechanical engineering

Fire-rated ventilation duct and improvements therein

#4 | 2021-09-30

US20210302058A1

Mechanical engineering

Fire-rated ventilation duct and improvements therein

#5 | 2019-05-23

US20190154295A1

Mechanical engineering

Pre-fabricated modular fire-rated conduit assembly

#6 | 2015-09-24

US20150267937A1

Mechanical engineering

Fire-rated modular duct assembly suitable for exhausting flammable or hazardous gases, vapours and other materials

#7 | 2015-04-16

US20150101697A1

Mechanical engineering

Fire-rated modular duct assembly and improvements therein

#8 | 2013-07-11

US20130174934A1

Mechanical engineering

Fire-rated modular duct assembly suitable for exhausting flammable or hazardous gases, vapours and other materials

#9 | 2010-08-05

US20100193238A1

Electricity

Apparatus for protecting cable trays, conduits and/or cables

#10 | 2010-05-06

US20100108438A1

Fixed constructions

PANEL FOR ACOUSTIC DAMPING AND FIRE PROTECTION APPLICATIONS

#11 | 2008-05-22

US20080115418A1

Fixed constructions

Fire resistant access panel for ducts and air handling equipment

#12 | 2007-11-01

US20070251723A1

Human necessities

METHOD AND APPARATUS FOR A MODULAR FIRE-BARRIER SYSTEM

#13 | 2006-07-06

US20060143987A1

Fixed constructions

Fire resistant access panel for ducts and air handling equipment

#14 | 2005-06-02

US20050116470A1

Mechanical engineering

Apparatus for a fire-rated duct

InventorID:

330168 ⎘