Ralph Clayson
5Patents
5h-index
5Co-inventors
48Inventor score
Filing activity: Aug 21, 1995 → Dec 5, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5520144A | Valve actuation assembly | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7121244B2 | Anti-rotation guide for a roller follower valve lifter | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5931133A | Roller cam follower bearing shaft retention | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6439186B1 | Mechanical oil filtration in an I.C. engine valve lifter | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6289765A | Roller follower shaft retention | Emerging Cross-Sectional Technologies | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.