CHUBU ELECTRIC POWER COMPANY, INCORPORATED
85Patents
29Active
85Granted
45Portfolio score
Filing activity: Aug 6, 1979 → Mar 22, 2023 · 13 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5305174A | Method of and device for protecting electrical power system | Mechanical Engineering; Lighting; Heating | 53 | Expired |
| US5475613A | Ultrasonic defect testing method and apparatus | Physics | 43 | Expired |
| US6305122A | Mosquito killing apparatus and mosquito trapping apparatus | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4964734A | Moisture content measuring system | Physics | 30 | Expired |
| US5182775A | Method of processing radiographic image data for detecting a welding defect | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5319311A | Cable fault location method with discharge delay compensation using multiple pulses with different rates of voltage increase | Physics | 27 | Expired |
| US4331034A | Ultrasonic probing apparatus | Physics | 27 | Expired |
| US5006689A | Vacuum insulated storage-type electric water heater having an external bubble pump heating unit | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US7162043B2 | Microphone array sound source location system with imaging overlay | Physics | 22 | Expired |
| US5362467A | Process for producing carbon dioxide clathrate | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5159561A | Zero-phase sequence current detector | Physics | 21 | Expired |
| US6537517B1 | Crystalline titania having nanotube crystal shape and process for producing the same | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6027775A | Crystalline titania and process for producing the same | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6114859A | Harmonic characteristic measuring method and harmonic characteristic measuring apparatus | Physics | 17 | Expired |
| US4785405A | Power system stabilizer | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6337561B1 | Apparatus for stabilizing a power system adapted to generating systems | Electricity | 14 | Expired |
| US5282429A | Method and system for handling exhaust gas in a boiler | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4933885A | Plant monitoring system | Physics | 13 | Expired |
| US5936197A | Clamp for overhead line and method of attachment thereof | Electricity | 12 | Expired |
| US6326796A | Harmonic measuring method and a current injection device for harmonic measurement | Physics | 11 | Expired |
| US5699219A | Ground fault current limiter and method of limiting ground fault current | Electricity | 11 | Expired |
| US6208945A | Harmonic component measuring method for power system | Physics | 11 | Expired |
| US4959526A | Storage type electric water heater having a closed circulation loop with a bubble pump | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4352167A | Method of locating sound generation within enclosure | Physics | 10 | Expired |
| US5532638A | Superconducting energy storage apparatus | Emerging Cross-Sectional Technologies | 10 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.