Daniel A. Norrick
11Patents
7h-index
16Co-inventors
63Inventor score
Filing activity: Dec 8, 1983 → Feb 9, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5469820A | Auxiliary power unit for a hybrid electrical vehicle | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5619956A | Auxiliary power unit for hybrid electric vehicle | Emerging Cross-Sectional Technologies | 29 | Expired |
| USD630581S1 | Portable generator set | General | 26 | Expired |
| US5606946A | Auxiliary power unit for a hybrid electric vehicle | Emerging Cross-Sectional Technologies | 21 | Expired |
| US9404417B2 | Noise attenuation compartment with heat exchanger arrangements for engines driving a load | Electricity | 19 | Active |
| US6892715B2 | Crankcase ventilation system | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4543927A | Engine control circuit | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US9334769B2 | Apparatuses, systems, and methods for crankcase oil sump overfill protection | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10473059B2 | Natural gas fuel system for an internal combustion engine | Emerging Cross-Sectional Technologies | 0 | Active |
| US8628887B2 | Fuel cell with low water consumption | Emerging Cross-Sectional Technologies | 0 | Active |
| US9920711B2 | Natural gas fuel system for an internal combustion engine | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.