Electric Power Research Institute, Inc.
991Patents
111Active
991Granted
48Portfolio score
Filing activity: Oct 7, 1974 → Jan 11, 2024 · 28 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5491969A | Power plant utilizing compressed air energy storage and saturation | Emerging Cross-Sectional Technologies | 333 | Expired |
| US6278357A | Apparatus and method for implementing digital communications on a power line | Electricity | 327 | Expired |
| US5341083A | Contactless battery charging system | Emerging Cross-Sectional Technologies | 323 | Expired |
| US4931950A | Multimedia interface and method for computer system | Emerging Cross-Sectional Technologies | 256 | Expired |
| US5301096A | Submersible contactless power delivery system | Emerging Cross-Sectional Technologies | 252 | Expired |
| US5208745A | Multimedia interface and method for computer system | Emerging Cross-Sectional Technologies | 243 | Expired |
| US8666553B2 | Line inspection robot and system | Emerging Cross-Sectional Technologies | 242 | Active |
| US8660698B2 | Line inspection robot and system | Electricity | 234 | Active |
| US5911898A | Method and apparatus for providing multiple autoregulated temperatures | Electricity | 187 | Expired |
| US4858141A | Non-intrusive appliance monitor apparatus | Physics | 157 | Expired |
| US6558454B1 | Method for removal of vapor phase contaminants from a gas stream by in-situ activation of carbon-based sorbents | Emerging Cross-Sectional Technologies | 143 | Expired |
| US5062276A | Humidity control for variable speed air conditioner | Emerging Cross-Sectional Technologies | 137 | Expired |
| US5827352A | Method for removing mercury from a gas stream and apparatus for same | Performing Operations; Transporting | 137 | Expired |
| US5467083A | Wireless downhole electromagnetic data transmission system and method | Fixed Constructions | 134 | Expired |
| US4971136A | Dual fuel heat pump controller | Emerging Cross-Sectional Technologies | 130 | Expired |
| US5778675A | Method of power generation and load management with hybrid mode of operation of a combustion turbine derivative power plant | Emerging Cross-Sectional Technologies | 129 | Expired |
| US5157319A | Contactless battery charging system | Emerging Cross-Sectional Technologies | 127 | Expired |
| US6818043B1 | Vapor-phase contaminant removal by injection of fine sorbent slurries | Performing Operations; Transporting | 121 | Expired |
| US5349541A | Method and apparatus utilizing neural networks to predict a specified signal value within a multi-element system | Emerging Cross-Sectional Technologies | 121 | Expired |
| US4766549A | Single-ended transmission line fault locator | Electricity | 118 | Expired |
| US4487996A | Shielded electrical cable | Electricity | 113 | Expired |
| US4208386A | Urea reduction of NO.sub.x in combustion effluents | Mechanical Engineering; Lighting; Heating | 113 | Expired |
| US4283643A | Hall sensing apparatus | Physics | 106 | Expired |
| US4234352A | Thermophotovoltaic converter and cell for use therein | Emerging Cross-Sectional Technologies | 104 | Expired |
| US5341280A | Contactless coaxial winding transformer power transfer system | Emerging Cross-Sectional Technologies | 102 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.