RB

Randall G. Birt

📍 Omaha, NE: #500 of 2,015 inventorsTop 25%
🗺 Nebraska: #1,406 of 5,697 inventorsTop 25%
Overall (All Time): #1,603,111 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6764021 Concrete railroad grade crossing panels Thomas L. Egan 2004-07-20
6705536 Concrete railroad grade crossing panels Thomas L. Egan 2004-03-16
6588676 Concrete railroad grade crossing panels Thomas L. Egan 2003-07-08