William E. Showalter
9Patents
6h-index
2Co-inventors
49Inventor score
Filing activity: Oct 23, 1975 → Jun 29, 1990
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5126037A | Geopreater heating method and apparatus | Emerging Cross-Sectional Technologies | 305 | Expired |
| US4755469A | Oil tracing method | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4105253A | Process for recovery of mineral values from underground formations | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5040605A | Oil recovery method and apparatus | Fixed Constructions | 15 | Expired |
| US4358158A | Solution mining process | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5025862A | Steam injection piping | Fixed Constructions | 6 | Expired |
| US4586752A | Solution mining process | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4358157A | Solution mining process | Emerging Cross-Sectional Technologies | 4 | Expired |
| US3995780A | Pressure-responsive valve mechanism | Mechanical Engineering; Lighting; Heating | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.