Karl Herrmann
17Patents
7h-index
27Co-inventors
66Inventor score
Filing activity: Jun 19, 1975 → Oct 16, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4953324A | Personnel door for a RF shielded room | Fixed Constructions | 66 | Expired |
| US5855799A | Rotary disk filter with backwash | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5128029A | Continuous backwashing filter apparatus with filtered fluid retention plate | Performing Operations; Transporting | 30 | Expired |
| US5422486A | Scanning electron beam device | Electricity | 28 | Expired |
| US4008783A | Hydraulically powered steering system for a vehicle having multiple steerable wheels | Performing Operations; Transporting | 21 | Expired |
| US4143257A | Welding wire feed mechanism | Performing Operations; Transporting | 18 | Expired |
| US4860016A | Test facility, especially for the search head of intelligent guided ammunition | Physics | 9 | Expired |
| US6356202B1 | Circuit for monitoring trouble-free state and/or detecting incorrect state of an installation | Electricity | 6 | Expired |
| US5262771A | Method for addressing processor units | Electricity | 6 | Expired |
| US4014198A | Drive mechanism of a pair of forging or stretching rollers | Performing Operations; Transporting | 6 | Expired |
| US5977662A | Electronic switching device and circuits with a plurality of such switching devices | Electricity | 5 | Expired |
| US4458950A | Energy supply unit for winning machines pulled by a traction mechanism for mining operations | Fixed Constructions | 4 | Expired |
| US5274367A | Device for in-service monitoring of communication transmission equipment | Electricity | 4 | Expired |
| US5166673A | Method for controlling and/or monitoring a communication transmission equipment for transmission errors for the implementation of the method | Electricity | 3 | Expired |
| US5866974A | Electron beam generator with magnetic cathode-protection unit | Electricity | 1 | Expired |
| US11169102B2 | Method and measurement device for ascertaining the thermal conductivity of a fluid | Physics | 0 | Active |
| US11169103B2 | Thermal gas sensor, method for measuring the thermal diffusivity of a gas or gas mixture and method for measuring the thermal conductivity of a gas or gas mixture | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.