Kraftwerk Union Aktiengesellschaft
459Patents
0Active
459Granted
41Portfolio score
Filing activity: Jul 8, 1971 → Sep 18, 1987
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4608818A | Medium-load power-generating plant with integrated coal gasification plant | Emerging Cross-Sectional Technologies | 287 | Expired |
| US4642417A | Concentric three-conductor cable | Electricity | 121 | Expired |
| US4676063A | Medium-load power generating station with an integrated coal gasification plant | Emerging Cross-Sectional Technologies | 72 | Expired |
| US4500323A | Process for the gasification of raw carboniferous materials | Chemistry; Metallurgy | 70 | Expired |
| US4541841A | Method for converting carbon-containing raw material into a combustible product gas | Chemistry; Metallurgy | 68 | Expired |
| US4589260A | Pre-mixing burner with integrated diffusion burner | Mechanical Engineering; Lighting; Heating | 66 | Expired |
| US4431136A | Slit nozzle and fast-acting shutoff valve | Performing Operations; Transporting | 56 | Expired |
| US4117733A | Test system carrier for ultrasonic testing of nozzle seams, pipe connection seams and nozzle corners in pressure vessels, particularly reactor pressure vessels of nuclear power plants | Emerging Cross-Sectional Technologies | 53 | Expired |
| US4631915A | Gas turbine and steam power-generating plant with integrated coal gasification plant | Emerging Cross-Sectional Technologies | 46 | Expired |
| US4749029A | Heat sheild assembly, especially for structural parts of gas turbine systems | Mechanical Engineering; Lighting; Heating | 45 | Expired |
| US4722001A | Self-propelled inspection vehicle | Emerging Cross-Sectional Technologies | 45 | Expired |
| US4300916A | Method and apparatus for the gasification of coal | Chemistry; Metallurgy | 44 | Expired |
| US4131018A | Elbow or bent tube manipulator, especially for ultrasonic testing in nuclear reactor installation | Emerging Cross-Sectional Technologies | 44 | Expired |
| US3968388A | Electric machines, particularly turbogenerators, having liquid cooled rotors | Emerging Cross-Sectional Technologies | 44 | Expired |
| US4460920A | Automatically traveling tube-interior manipulator for remotely controlled transportation of testing devices and tools along given feedpaths, preferably for nuclear reactor installations | Emerging Cross-Sectional Technologies | 44 | Expired |
| US4701124A | Combustion chamber apparatus for combustion installations, especially for combustion chambers of gas turbine installations, and a method of operating the same | Mechanical Engineering; Lighting; Heating | 41 | Expired |
| US4662902A | Evaporation cooling tower | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4250704A | Combined gas-steam power plant with a fuel gasification device | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4315172A | Cooling system for rotors of electric machines, especially for turbo-generator rotors with a superconductive field winding | Emerging Cross-Sectional Technologies | 35 | Expired |
| US3942053A | Device for securing a superconductive exciter winding in the rotor of a turbogenerator | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4280875A | Safety device for preventing unscrewing of cylinder-head screws having an inner polygon, and plastic deformation tool for use with the device | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4246783A | Spring-force measuring device | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4697415A | Combined gas and steam-turbine power generating station | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4231419A | Manipulator for inspection and possible repair of the tubes of heat exchangers, especially of steam generators for nuclear reactors | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4226640A | Method for the chemical decontamination of nuclear reactor components | Physics | 31 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.