DB

Donald R. Bizek

📍 Woodridge, IL: #197 of 450 inventorsTop 45%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,279,998 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5533234 Torsion hinge with tubular pivot pin — 1996-07-09
4788748 Torque hinge having its knuckles individually crimped around the hinge pin — 1988-12-06