H&POWER, INC.
25Patents
1Active
25Granted
33Portfolio score
Filing activity: Aug 13, 1992 → Apr 2, 2014
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5863671A | Plastic platelet fuel cells employing integrated fluid management | Emerging Cross-Sectional Technologies | 91 | Expired |
| US5683828A | Metal platelet fuel cells production and operation methods | Emerging Cross-Sectional Technologies | 80 | Expired |
| US5858567A | Fuel cells employing integrated fluid management platelet technology | Emerging Cross-Sectional Technologies | 78 | Expired |
| US6051331A | Fuel cell platelet separators having coordinate features | Emerging Cross-Sectional Technologies | 70 | Expired |
| US6093501A | Fuel cell using an aqueous hydrogen-generating process | Emerging Cross-Sectional Technologies | 56 | Expired |
| US5292600A | Hydrogen power cell | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5776625A | Hydrogen-air fuel cell | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5925322A | Fuel cell or a partial oxidation reactor or a heat engine and an oxygen-enriching device and method therefor | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5510201A | Method of operating a fuel cell wherein hydrogen is generated by providing iron in situ | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5840270A | Catalytic method of generating hydrogen | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6048634A | Fuel cell using water-soluble fuel | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5629102A | Electrical automobile having a fuel cell, and method of powering an electrical automobile with a fuel cell system | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5690902A | Hydrogen-powered automobile with in situ hydrogen generation | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5830426A | Aqueous hydrogen generation process | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5445904A | Methods of making oxygen distribution members for fuel cells | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5643352A | Reactive iron material for use in a hydrogen-generating process in an electrical vehicle | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6730424B1 | Electrochemical method to improve the performance of H2/air PEM fuel cells and direct methanol fuel cells | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7220693B1 | Fuel cell catalyst electrodes | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6836123B1 | Sensor for electro-active materials | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7141322B2 | Alcohol fueled direct oxidation fuel cells | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6727014B1 | Fuel cell reactant and cooling flow fields integrated into a single separator plate | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6869704B1 | Enhancement of electrochemical cell performance | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7049014B1 | Direct secondary alcohol fuel cells | Emerging Cross-Sectional Technologies | 0 | Expired |
| US9461324B2 | Autothermal reforming catalyst for monolithic fuel cell | Emerging Cross-Sectional Technologies | 0 | Active |
| US6805983B1 | Activation of electrochemical cells with catalyst electrodes | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.