Norbert Keim
42Patents
12h-index
58Co-inventors
84Inventor score
Filing activity: Jun 21, 1991 → Aug 25, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5996911A | Electromagnetically actuated valve | Mechanical Engineering; Lighting; Heating | 79 | Expired |
| US5732888A | Electromagnetically operable valve | Mechanical Engineering; Lighting; Heating | 62 | Expired |
| US5769965A | Method for treating at least one part of soft magnetic material to form a hard wear area | Electricity | 39 | Expired |
| US6619269B1 | Fuel injector | Emerging Cross-Sectional Technologies | 33 | Expired |
| US6494388B1 | Fuel injection valve | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US6382533B1 | Fuel injection valve | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6826833B1 | Fuel injection valve and a method for manufacturing exit outlets on the valve | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6089473A | Valve, in particular a fuel injection valve | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6772965B2 | Fuel injection valve | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US6685105B1 | Fuel injection valve | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5791568A | Leaf vacuum/chopper | Human Necessities | 13 | Expired |
| US5428331A | Component substrate and method for holding a component made of ferromagnetic material | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6244526A | Fuel injection valve | Electricity | 12 | Expired |
| US6679222B1 | Method of metering fuel using a fuel injector | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US7260462B2 | Method for controlling an electromagnetic valve, in particular for an automatic transmission of a motor vehicle | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6637677B1 | Fuel injector | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US7086614B2 | Fuel injector | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6474565B1 | Fuel injection valve | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6405942B1 | Fuel injector with compensating sealing element | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6681999B1 | Fuel injection valve | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5160520A | Process for the production of a blank mold for glass fiber optical waveguides | Chemistry; Metallurgy | 4 | Expired |
| US6685113B1 | Actuator | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6840459B1 | Fuel injection valve | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6712289B1 | Fuel injection valve | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US5255854A | Burner head for gas burners | Mechanical Engineering; Lighting; Heating | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.