James M. Ulwelling
9Patents
7h-index
11Co-inventors
49Inventor score
Filing activity: Apr 3, 2008 → Feb 15, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD612544S1 | Visor frame for headgear article | General | 34 | Expired |
| USD590547S1 | Headgear article having recessed portions | General | 25 | Expired |
| USD587858S1 | Visor frame for headgear article | General | 25 | Expired |
| USD590548S1 | Breathing tube connection for respiratory protection system | General | 21 | Expired |
| USD597260S1 | Visor frame for headgear article | General | 20 | Expired |
| USD597710S1 | Headgear article having recessed portions | General | 9 | Expired |
| USD683845S1 | Respirator belt | General | 9 | Active |
| USD683013S1 | Respirator belt having flexible air channels | General | 6 | Active |
| USD703806S1 | Respirator belt having bumper cushion | General | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.