John C. Layer
7Patents
4h-index
9Co-inventors
50Inventor score
Filing activity: Jan 29, 1986 → Jul 31, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5931739A | Fail-safe ride simulator | Physics | 81 | Expired |
| US4838403A | Overtravel stop activated control valve | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4721196A | Overtravel stop | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4986734A | Overspeed protection system for aircraft fan engine | Performing Operations; Transporting | 4 | Expired |
| US4693352A | Clutch mechanism | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4869106A | Governor checkout apparatus and method | Physics | 1 | Expired |
| US11274533B2 | Linear motor for pumping | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.