David C. Bean
3Patents
3h-index
3Co-inventors
36Inventor score
Filing activity: Oct 7, 1975 → Jul 28, 1978
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4079158A | Asphalt impregnated felt building materials | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4135022A | Built-up roofing using sulfur asphalt | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4155654A | Apparatus for continuous preparation of sulfur asphalt binders and paving compositions | Fixed Constructions | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.