Ernst Hammel
16Patents
7h-index
21Co-inventors
66Inventor score
Filing activity: Jul 13, 1988 → Jun 20, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8034321B2 | Hydrogen production | Emerging Cross-Sectional Technologies | 39 | Active |
| US7488455B2 | Apparatus for the production of carbon nanotubes | Emerging Cross-Sectional Technologies | 34 | Active |
| US6191944A | Heat sink for electric and/or electronic devices | Electricity | 16 | Expired |
| US7033647B2 | Method of synthesising carbon nano tubes | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7800908B2 | Device with a heat source formed by a function element that is to be cooled, at least one heat sink, and at least one intermediate layer located between the heat source and the heat sink | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4958074A | Apparatus and method for inspecting a mask | Physics | 11 | Expired |
| US7202596B2 | Electron emitter and process of fabrication | Electricity | 8 | Expired |
| US7157848B2 | Field emission backlight for liquid crystal television | Electricity | 6 | Expired |
| US6722936B2 | Method for producing a field emission display | Electricity | 3 | Expired |
| US7384668B2 | CCVD method for producing tubular carbon nanofibers | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6156217A | Method for the purpose of producing a stencil mask | Physics | 2 | Expired |
| US8559475B2 | Heat sink and assembly or module unit | Electricity | 1 | Active |
| US9561957B2 | Use of a process for hydrogen production | Emerging Cross-Sectional Technologies | 1 | Active |
| US8519530B2 | Method for treating nanofiber material and composition of nanofiber material | Emerging Cross-Sectional Technologies | 1 | Active |
| US8304054B2 | Printed circuit board made from a composite material | Emerging Cross-Sectional Technologies | 1 | Active |
| US8119220B2 | Composite material, especially multilayer material, and adhesive or bonding material | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.