Patents/Inventors

William Christopher Duffy

ThornhillCA2 patents

3 Patents

USRE0505872025
Fire-rated Modular Duct Assembly Suitable for Exhausting Flammable or Hazardous Gases, Vapours and Other Materials
VAUGHANAIR CANADA ULC
0 cites
US121886792025
Pre-fabricated Modular Fire-rated Conduit Assembly
VAUGHANAIR CANADA ULC
0 cites
US121528022024
Fire-rated Ventilation Duct and Improvements Therein
VAUGHANAIR CANADA ULC
0 cites