Ronald E. Barker
5Patents
3h-index
9Co-inventors
50Inventor score
Filing activity: May 14, 1979 → Jan 29, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6446820B1 | Railcar draft gear assembly and system | Performing Operations; Transporting | 34 | Expired |
| US6681943B2 | Railcar draft gear assembly and system | Performing Operations; Transporting | 26 | Expired |
| US4811442A | Sweeping apparatus | Fixed Constructions | 9 | Expired |
| US4491300A | Valve with improved sealing structure | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4252085A | Animal twitch | Human Necessities | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.