William M. Martz
7Patents
5h-index
13Co-inventors
60Inventor score
Filing activity: Sep 26, 1979 → Jan 30, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6135511A | Window locking system | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5382060A | Latching apparatus for double doors | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5927767A | Window locking system | Emerging Cross-Sectional Technologies | 31 | Expired |
| US6658794B1 | Guide assembly for a tilt-out sash window | Fixed Constructions | 14 | Expired |
| US4798016A | Picture pen | Emerging Cross-Sectional Technologies | 7 | Expired |
| USD463301S1 | Tape measure marking accessory | General | 1 | Expired |
| US4273458A | Writing implement | Performing Operations; Transporting | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.