Hydro-Quebec
412Patents
118Active
412Granted
48Portfolio score
Filing activity: Aug 30, 1976 → Oct 14, 2022 · 36 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5952815A | Equalizer system and method for series connected energy storing devices | Electricity | 307 | Expired |
| US6046514A | Bypass apparatus and method for series connected energy storage devices | Emerging Cross-Sectional Technologies | 212 | Expired |
| US5101086A | Electromagnetic inductor with ferrite core for heating electrically conducting material | Electricity | 157 | Expired |
| US5418437A | Motor vehicle drive system for a motor vehicle having an electric motor system, and a method of operating said drive system | Emerging Cross-Sectional Technologies | 133 | Expired |
| US5415954A | Electrical contact outlet for anodes | Emerging Cross-Sectional Technologies | 128 | Expired |
| US6085015A | Lithium insertion electrode materials based on orthosilicate derivatives | Emerging Cross-Sectional Technologies | 128 | Expired |
| US6087036A | Thermal management system and method for a solid-state energy storing device | Emerging Cross-Sectional Technologies | 102 | Expired |
| US5227264A | Device for packaging a lithium battery | Emerging Cross-Sectional Technologies | 74 | Expired |
| US5021308A | New ion conductive material composed of a salt in solution in a liquid electrolyte | Emerging Cross-Sectional Technologies | 73 | Expired |
| US4758483A | Novel macromolecular material for use in realizing electrolytes and/or electrodes | Electricity | 72 | Expired |
| US4675664A | Alarm system and method for detecting proximity of an object to electrical power lines | Physics | 71 | Expired |
| US4766365A | Self-regulated transformer-inductor with air gaps | Emerging Cross-Sectional Technologies | 65 | Expired |
| US6319428A | Perfluorinated amide salts and their uses as ionic conducting materials | Emerging Cross-Sectional Technologies | 61 | Expired |
| US4959523A | Method and apparatus for automatically sensing the configuration of a surface area and effecting a work function thereon | Physics | 58 | Expired |
| US5250784A | Method and device for cutting a multilayer assembly composed of a plurality of thin films and comprising a thin film electrochemical generator or a component part thereof | Emerging Cross-Sectional Technologies | 58 | Expired |
| US6451487B1 | Composite coating LiPO3 | Emerging Cross-Sectional Technologies | 58 | Expired |
| US6030421A | Ultra thin solid state lithium batteries and process of preparing same | Emerging Cross-Sectional Technologies | 56 | Expired |
| US5105181A | Method and electrical measuring apparatus for analyzing the impedance of the source of an actual alternating voltage | Physics | 56 | Expired |
| US4519835A | Transferred-arc plasma reactor for chemical and metallurgical applications | Electricity | 55 | Expired |
| US5964965A | Nanocrystalline Mg or Be-based materials and use thereof for the transportation and storage of hydrogen | Emerging Cross-Sectional Technologies | 52 | Expired |
| US4578326A | Novel macromolecular material for use in realizing electrolytes and/or electrodes | Electricity | 50 | Expired |
| US5072040A | Process for synthesis of sulfonylimides | Electricity | 50 | Expired |
| US6008265A | Fluorinated ionic sulfonylimides and sulfonylmethylides, process of preparing same and use thereof as photoinitiators | Physics | 49 | Expired |
| US4517265A | Composite and flexible anodes for lithium cells in non-aqueous medium | Emerging Cross-Sectional Technologies | 49 | Expired |
| US4911995A | Thin electrode supported on electronically conductive sheet and process of manufacture | Emerging Cross-Sectional Technologies | 46 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.