Daniel Wayne Simpson
3Patents
2h-index
2Co-inventors
38Inventor score
Filing activity: Dec 29, 1980 → Apr 28, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4329225A | Mixed bed deionizer | Performing Operations; Transporting | 12 | Expired |
| US4416773A | Valve mechanism for multiple distributor fluid treatment system | Performing Operations; Transporting | 2 | Expired |
| US9840259B2 | Railway car window assemblies and assembly methods | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.