Charles McInvale
5Patents
4h-index
1Co-inventors
43Inventor score
Filing activity: Sep 26, 1997 → Apr 3, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6315077A | Insert forming hole to receive manhole step | Fixed Constructions | 15 | Expired |
| US6109587A | Manhole lift insert locator | Fixed Constructions | 7 | Expired |
| USD498131S1 | Manhole lift insert with frangible positioner | General | 6 | Expired |
| USD490907S1 | Two-sided manhole step | General | 4 | Expired |
| USD556917S1 | Two sided manhole step | General | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.