Inventor

MULLEN WILLIAM A

US2 patents

⚠️ This page may combine multiple inventors who share the name “MULLEN WILLIAM A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ENERGY RESOURCES & LOGISTICS I

1 patent

US5263421ANov 23, 1993

Coal fly-ash railway hopper car with 70 degree minimum slope and end sheet angle and longitudinal dual purpose loading hatch

ENERGY RESOURCES & LOGISTICS I21 citations83

PORTLAND GENERAL ELECTRIC COMP

1 patent

US4589348AMay 20, 1986

Retrofitted railway car and method of producing same

PORTLAND GENERAL ELECTRIC COMP16 citations69