Andreas Kappel
51Patents
12h-index
36Co-inventors
84Inventor score
Filing activity: Jun 14, 1991 → Nov 4, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5685485A | Apparatus for apportioning and atomizing fluids | Mechanical Engineering; Lighting; Heating | 78 | Expired |
| US5875764A | Apparatus and method for valve control | Mechanical Engineering; Lighting; Heating | 56 | Expired |
| US6311950A | Fluid metering device | Mechanical Engineering; Lighting; Heating | 54 | Expired |
| US6062533A | Apparatus and method for valve control | Mechanical Engineering; Lighting; Heating | 50 | Expired |
| US8335296B2 | Multi-leaf collimators and operating method | Physics | 40 | Active |
| US6148842A | Compensation element for the compensation of temperature-conditioned length changes of an object | Emerging Cross-Sectional Technologies | 40 | Expired |
| US7886993B2 | Injection valve | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| US6664710B1 | Electromechanical motor | Electricity | 21 | Expired |
| US7195182B2 | Dosing device for fluids, especially a motor vehicle injection valve | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5850109A | Magnetostrictive actuator | Electricity | 15 | Expired |
| US7309032B2 | Dosing device for fluids, especially a motor vehicle injection valve | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6487505B1 | Method for evaluating characteristic values of piezo-mechanical systems | Electricity | 13 | Expired |
| US6969009B2 | Injector, especially fuel injection valve, with a piezoelectric actor | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US7044407B2 | Fluid dosing device with a throttle point | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6739528B2 | Compensator assembly having a flexible diaphragm and an internal filling tube for a fuel injector and method | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6173912A | Plate valve for the dosing of liquids | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5208611A | Arrangement for heating the ink in the write head of an ink-jet printer | Performing Operations; Transporting | 9 | Expired |
| US5840255A | Gas sensor | Physics | 8 | Expired |
| US6676035B2 | Dual-spring compensator assembly for a fuel injector and method | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6967429B2 | Power output stage for capacitive loads | Electricity | 8 | Expired |
| US8889370B2 | Method of determining inhibitors of coagulation | Chemistry; Metallurgy | 8 | Active |
| US8809007B2 | Method for determining the activity of a proteolytic coagulation factor in a sample | Physics | 7 | Active |
| US6530273B1 | Metering device and method for delivering fluid employing a compensating element | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6676030B2 | Compensator assembly having a flexible diaphragm for a fuel injector and method | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US5400063A | Method for optimizing a conductor-path layout for a print head of an ink printing device, and a conductor-path layout for such a print head | Electricity | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.