Siegfried Pohl
22Patents
8h-index
29Co-inventors
75Inventor score
Filing activity: Aug 4, 1975 → Mar 27, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4098324A | Water-cooled, high-temperature gasifier and method for its operation | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4157244A | Gas-cooling method and apparatus | Chemistry; Metallurgy | 15 | Expired |
| US4013427A | Slag bath generator | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4049394A | Control system for a coal gasification plant | Chemistry; Metallurgy | 14 | Expired |
| US4188915A | Water-cooled, high-temperature gasifier | Chemistry; Metallurgy | 12 | Expired |
| US4043766A | Slag bath generator | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4508324A | Fastening means for a closure plate on a sliding shutter outlet in a vessel which contains molten metal | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4159447A | System for detecting faults in the wall of a high-temperature pressure vessel | Chemistry; Metallurgy | 9 | Expired |
| US5303905A | Refractory ceramic stopper, apparatus for support thereof, and assembly thereof | Performing Operations; Transporting | 8 | Expired |
| US5429283A | Immersion nozzle formed of separate members | Performing Operations; Transporting | 6 | Expired |
| US4923225A | Assembly for connecting a metal member to a ceramic refractory member | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4049570A | Method and apparatus for removing vapors and aerosols from gases produced in a gasification plant | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6266989A | Method and machine for straightening sections | Performing Operations; Transporting | 5 | Expired |
| US4073628A | Control system for apparatus to gasify fine-grain fuels in a reactor | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4634685A | Refractory article suitable for casting molten metal | Chemistry; Metallurgy | 4 | Expired |
| US4802205A | Circuit arrangement for telecommunications switching systems, particularly for telephone switching systems comprising information-processing sequential logic systems and traffic measuring devices | Electricity | 3 | Expired |
| US4860344A | Circuit arrangement for telecommunications switching systems, particularly telephone switching systems, etc. | Electricity | 3 | Expired |
| US3990820A | Apparatus for discharging hot liquid material from a pressure vessel | Chemistry; Metallurgy | 3 | Expired |
| US4372754A | Ignition system for coal gasifier | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4102674A | Method for hardening iron ore pellets | Chemistry; Metallurgy | 1 | Expired |
| US4708196A | Shaft cooler for the dry quenching of coke | Emerging Cross-Sectional Technologies | 0 | Expired |
| US3994700A | Apparatus for the low temperature carbonization of fine-grain fuels | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.