DB

David C Brezina

TI Trinity Industrial: 1 patents #107 of 241Top 45%
📍 Chicago, IL: #3,073 of 13,327 inventorsTop 25%
🗺 Illinois: #21,447 of 84,256 inventorsTop 30%
Overall (All Time): #1,157,772 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11066129 Toerail grommet 2021-07-20
10501154 Horn cleat deflector 2019-12-10
5000633 Railway freight car shoe design John Kowalik, Jr. 1991-03-19
4493749 Composite vehicle frames and method of manufacturing composite vehicle frames 1985-01-15