Inventor
DOUGLAS PETER J
US5 patents
⚠️ This page may combine multiple inventors who share the name “DOUGLAS PETER J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNION TANK CAR CO
4 patentsUS9260118B2Feb 16, 2016
Railroad tank car manway assembly
UNION TANK CAR CO8 citations80
US9746873B2Aug 29, 2017
Disengaging handle assembly for a bottom outlet valve
UNION TANK CAR CO4 citations69
US9499178B2Nov 22, 2016
Railroad tank car manway assembly
UNION TANK CAR CO4 citations69
US9714719B2Jul 25, 2017
Bottom outlet valve removable independent steam jacket
UNION TANK CAR CO0 citations41