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Inventor

BARKER RONALD E

US5 patents
⚠️ This page may combine multiple inventors who share the name “BARKER RONALD E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AMSTED IND INC

3 patents
US6681943B2Jan 27, 2004

Railcar draft gear assembly and system

AMSTED IND INC52 citations94
US6446820B1Sep 10, 2002

Railcar draft gear assembly and system

AMSTED IND INC76 citations94
US4491300AJan 1, 1985

Valve with improved sealing structure

AMSTED IND INC12 citations69

BARKER RONALD E

2 patents
US4811442AMar 14, 1989

Sweeping apparatus

BARKER RONALD E12 citations68
US4252085AFeb 24, 1981

Animal twitch

BARKER RONALD E5 citations57