Inventor
FERRIS RAY L
US10 patents
⚠️ This page may combine multiple inventors who share the name “FERRIS RAY L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PULLMAN INC
7 patentsUS4191107AMar 4, 1980
Articulated railway car
PULLMAN INC53 citations92
US4136621AJan 30, 1979
Railway hopper car door locking mechanism
PULLMAN INC40 citations90
US4158996AJun 26, 1979
Locking arrangement for hopper car doors
PULLMAN INC12 citations73
US4141300AFeb 27, 1979
Railway car for highway trailers
PULLMAN INC2 citations62
US4068410AJan 17, 1978
Railway car door locking mechanism
PULLMAN INC5 citations62
US3964766AJun 22, 1976
Fifth wheel plate assembly
PULLMAN INC3 citations62
US3944375AMar 16, 1976
Fifth wheel plate assembly
PULLMAN INC1 citations51