The Kansai Electric Power Co., Inc.
216Patents
89Active
216Granted
49Portfolio score
Filing activity: May 30, 1979 → Apr 28, 2022 · 50 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5344627A | Process for removing carbon dioxide from combustion exhaust gas | Emerging Cross-Sectional Technologies | 122 | Expired |
| US5318758A | Apparatus and process for removing carbon dioxide from combustion exhaust gas | Emerging Cross-Sectional Technologies | 93 | Expired |
| US5700437A | Method for removing carbon dioxide from combustion exhaust gas | Emerging Cross-Sectional Technologies | 88 | Expired |
| US8398757B2 | CO2 recovering apparatus | Emerging Cross-Sectional Technologies | 79 | Active |
| US4956244A | Apparatus and method for regenerating electrolyte of a redox flow battery | Emerging Cross-Sectional Technologies | 78 | Expired |
| US5026256A | Variable speed pumping-up system | Emerging Cross-Sectional Technologies | 76 | Expired |
| US6461772B1 | Battery diaphragm | Emerging Cross-Sectional Technologies | 76 | Expired |
| US8414694B2 | CO2 recovery apparatus and CO2 recovery method | Emerging Cross-Sectional Technologies | 75 | Active |
| US6342709B1 | Insulated gate semiconductor device | Electricity | 70 | Expired |
| US5493155A | Electric power supply system | Emerging Cross-Sectional Technologies | 70 | Expired |
| US5583492A | Method and apparatus for monitoring inside a manhole | Electricity | 67 | Expired |
| US6117404A | Apparatus and process for recovering basic amine compounds in a process for removing carbon dioxide | Emerging Cross-Sectional Technologies | 64 | Expired |
| US5618506A | Process for removing carbon dioxide from gases | Emerging Cross-Sectional Technologies | 62 | Expired |
| US4694189A | Control system for variable speed hydraulic turbine generator apparatus | Electricity | 62 | Expired |
| US5339633A | Recovery of carbon dioxide from combustion exhaust gas | Emerging Cross-Sectional Technologies | 61 | Expired |
| US6563234B2 | Power system stabilization system and method employing a rechargeable battery system | Emerging Cross-Sectional Technologies | 59 | Expired |
| US4879973A | Automatic tube circumference scanning apparatus | Physics | 56 | Expired |
| US5378442A | Method for treating combustion exhaust gas | Emerging Cross-Sectional Technologies | 56 | Expired |
| US5648053A | Process for removing carbon dioxide and nitrogen oxides from combustion gases | Emerging Cross-Sectional Technologies | 55 | Expired |
| US5100743A | Internal reforming type molten carbonate fuel cell | Emerging Cross-Sectional Technologies | 52 | Expired |
| US6761945B1 | Electrolyte tank and manufacturing method thereof | Emerging Cross-Sectional Technologies | 47 | Expired |
| US4911521A | Connecting box for multi-optical fiber cable | Physics | 47 | Expired |
| US7029793B2 | Nonaqueous electrolyte lithium secondary cell | Emerging Cross-Sectional Technologies | 41 | Expired |
| US7199550B2 | Method of operating a secondary battery system having first and second tanks for reserving electrolytes | Emerging Cross-Sectional Technologies | 40 | Expired |
| US6600192B1 | Vertical field-effect semiconductor device with buried gate region | Electricity | 40 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.