Stefan Keller
70Patents
5h-index
103Co-inventors
75Inventor score
Filing activity: Dec 7, 1994 → Apr 21, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6918064B2 | Method and device for monitoring control units | Physics | 54 | Expired |
| US5553184A | Process for the application of fiber optical bundles comprising optical fibers | Physics | 18 | Expired |
| US5515470A | Process for reconstructing a picture coupled into a fiber optical bundle made of optical fibers | Physics | 15 | Expired |
| US6964192B2 | Method and device for monitoring a torque of a drive unit of a vehicle | Emerging Cross-Sectional Technologies | 9 | Expired |
| US10349737B2 | Height-adjustable frame with foldable leg elements | Human Necessities | 8 | Active |
| US11039582B2 | Simplified interface and operation in a watering system | Performing Operations; Transporting | 5 | Active |
| US8092748B2 | Housing for a component of an exhaust system and method of producing such a housing | Emerging Cross-Sectional Technologies | 5 | Active |
| US10104955B2 | Height-adjustable table | Human Necessities | 4 | Active |
| US10147979B2 | Battery pack with cell fixing apparatus | Emerging Cross-Sectional Technologies | 4 | Active |
| US7437218B2 | Method and device for controlling the functional unit of a motor vehicle | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7813524B2 | Method for processing mailings comprising wrong recipient addresses | Performing Operations; Transporting | 4 | Active |
| US11610954B1 | OLED panel with advanced sub-pixel overhangs | Electricity | 4 | Active |
| US10098451B2 | Height-adjustable table | Human Necessities | 4 | Active |
| US11320514B2 | Method and device for measuring a distance to a target in a multi-user environment by means of at least one detector | Physics | 4 | Active |
| US7724766B2 | High-density wireless local area network | Electricity | 4 | Active |
| US10470563B2 | Height-adjustable piece of furniture and cable protector for such a piece of furniture | Human Necessities | 3 | Active |
| US10299581B2 | Furniture composition with height-adjustable partition | Human Necessities | 3 | Active |
| US6588257B1 | Method for checking the plausibility of the measured load in an internal combustion engine having variable valve lift control | Emerging Cross-Sectional Technologies | 3 | Expired |
| US11039583B2 | Watering system with adaptive components | Physics | 3 | Active |
| US6732714B2 | Method, computer program, and control and/or regulating device for operating an internal combustion engine | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US7307561B2 | Method and device for functionally testing an analog to-digital converter and a corresponding analog-to-digital converter | Electricity | 3 | Expired |
| US7418316B2 | Method and device for controlling operational processes, especially in a vehicle | Electricity | 3 | Expired |
| US10048181B2 | Device for performing a bending test | Physics | 2 | Active |
| US9191881B2 | Wireless network for automation, realtime and/or industrial applications | Emerging Cross-Sectional Technologies | 2 | Active |
| US8857056B2 | Method of manufacturing an exhaust gas carrying device and tool therefor | Emerging Cross-Sectional Technologies | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.