DT

Doug J Tanner

FS Federal Signal: 1 patents #293 of 717Top 45%
📍 Sartell, MN: #27 of 73 inventorsTop 40%
🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%
Overall (All Time): #2,241,188 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6105484 Lockout device for valve actuators Gene Kalthoff, Al Libke 2000-08-22
4971288 Valve actuator with hydraulic damper Greg Hegwer, Al Backes 1990-11-20