Gerd Grass
15Patents
5h-index
15Co-inventors
63Inventor score
Filing activity: Feb 1, 1978 → Sep 16, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6435308B2 | Drive configuration for stair lifts | Performing Operations; Transporting | 9 | Expired |
| US6571772B1 | Method for starting an internal combustion engine having several cylinder banks and being operated with gasoline direct injection | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4181355A | Vehicle seat | Performing Operations; Transporting | 6 | Expired |
| US5641040A | Drive for a freight elevator, in particular for a stair climber for the handicapped | Performing Operations; Transporting | 5 | Expired |
| US4756387A | Staircase lift | Performing Operations; Transporting | 5 | Expired |
| US4181353A | Vehicle seat | Performing Operations; Transporting | 4 | Expired |
| US6766790B2 | Method for warming-up an internal combustion engine | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4181354A | Vehicle seat | Performing Operations; Transporting | 2 | Expired |
| US6725835B2 | Method for operating an otto-cycle internal combustion engine with fuel injection on a cold start | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6505602B1 | Method of operating an internal combustion engine | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6273068A | Fuel supply system for an internal combustion engine, particularly of a motor vehicle | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US6874358B2 | Method for determining a hot-start situation in an internal combustion engine | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US6378496B1 | Fuel supply system for an internal combustion engine in a motor vehicle in particular | Physics | 1 | Expired |
| US7044105B2 | Methods and device for controlling an internal combustion engine | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6768939B2 | Method and device for checking the performance reliability of a timer | Mechanical Engineering; Lighting; Heating | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.