William E. Nagengast
22Patents
13h-index
29Co-inventors
81Inventor score
Filing activity: Jul 16, 1986 → Jan 20, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9206964B2 | Convertible lighting fixture for multiple light sources | Mechanical Engineering; Lighting; Heating | 50 | Active |
| US5360282A | Vehicle headlamp adjuster ball and socket assembly | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5251111A | Composite headlamp vent device | Emerging Cross-Sectional Technologies | 21 | Expired |
| US8950907B2 | Convertible lighting fixture for multiple light sources | Mechanical Engineering; Lighting; Heating | 21 | Active |
| US4974123A | Headlamp assembly | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5010455A | Headlamp assembly | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4761717A | Headlamp pivot assembly | Performing Operations; Transporting | 18 | Expired |
| US5351170A | Vehicle headlamp assembly | Performing Operations; Transporting | 16 | Expired |
| US4707771A | Support shoe for a vehicle headlamp assembly | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5151849A | Headlamp leveling arrangement | Performing Operations; Transporting | 15 | Expired |
| US5539625A | Vehicle headlamp aiming device | Performing Operations; Transporting | 14 | Expired |
| US5113331A | Vehicle headlamp assembly | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| USD698991S1 | Lighting fixture lens | General | 14 | Active |
| US4851976A | Headlamp bulb retaining arrangement | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5402325A | Vehicle headlamp assembly | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5095410A | Retainer arrangement for a replaceable lamp bulb assembly | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5253154A | Headlamp leveling arrangement | Performing Operations; Transporting | 9 | Expired |
| US5003446A | Composite headlamp vent device | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US9494297B1 | Solar-powered LED module and lighting fixtures | Emerging Cross-Sectional Technologies | 8 | Active |
| US5424923A | Quick release vehicle headlamp arrangement | Performing Operations; Transporting | 8 | Expired |
| US4833572A | Headlamp ventilation system | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US4991067A | Headlamp assembly | Mechanical Engineering; Lighting; Heating | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.