William J. Butzen
5Patents
5h-index
—Co-inventors
50Inventor score
Filing activity: Feb 2, 1982 → Oct 14, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4419850A | Gravel curb | Fixed Constructions | 33 | Expired |
| US5031367A | Roof edge fascia system | Fixed Constructions | 25 | Expired |
| US4648218A | Interlocking roof edge fascia system | Fixed Constructions | 16 | Expired |
| US8161689B1 | Flashing end dam having angularly adjustable leg | Fixed Constructions | 14 | Active |
| US4707954A | Roof edge fascia system | Fixed Constructions | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.