DC

David E. Cichowski

US Union Switch & Signal: 1 patents #25 of 78Top 35%
📍 Lower Burrell, PA: #229 of 383 inventorsTop 60%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,697,428 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5812102 Vital monitoring system for seven-segment display used in railroad applications Bernard J. Sprole, Jr. 1998-09-22