William J. Hannah

UN Unknown: 2 patents #12,644 of 83,584Top 20%

📍 Mississauga, CA: #1,370 of 3,799 inventorsTop 40%

Overall (All Time): #2,331,128 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4836436	Method of manufacturing a fabricated open web steel joist	—	1989-06-06
4748786	Fabricated open web steel joist, and manufacture thereof	—	1988-06-07