ReliOn, Inc.
22Patents
7Active
22Granted
35Portfolio score
Filing activity: Jul 26, 2001 → Jun 4, 2013 · 4 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6858335B2 | Fuel cell power systems and methods of operating fuel cell power systems | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6743536B2 | Fuel cell power system and method of controlling a fuel cell power system | Emerging Cross-Sectional Technologies | 18 | Expired |
| US7326480B2 | Fuel cell power system and method of controlling a fuel cell power system | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6773839B2 | Fuel cell power systems and methods of controlling a fuel cell power system | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6811906B2 | Method and apparatus for monitoring equivalent series resistance and for shunting a fuel cell | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6805987B2 | Method and apparatus for monitoring equivalent series resistance and for shunting a fuel cell | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6939636B2 | Air cooled fuel cell module | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7056608B2 | Current collector for use in a fuel cell | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7833645B2 | Proton exchange membrane fuel cell and method of forming a fuel cell | Emerging Cross-Sectional Technologies | 9 | Active |
| US8026020B2 | Proton exchange membrane fuel cell stack and fuel cell stack module | Emerging Cross-Sectional Technologies | 9 | Active |
| US6745799B1 | Method for delivering a gas | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6806678B2 | Battery charger | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7056613B2 | Fuel cell having metalized gas diffusion layer | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6982129B1 | Method and apparatus for monitoring equivalent series resistance and for shunting a fuel cell | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6828050B2 | Fuel cell | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7049017B2 | Method and apparatus for monitoring equivalent series resistance and for shunting a fuel cell | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8003274B2 | Direct liquid fuel cell | Emerging Cross-Sectional Technologies | 3 | Active |
| US8192889B2 | Proton exchange membrane fuel cell stack and fuel cell stack module | Emerging Cross-Sectional Technologies | 2 | Active |
| USRE39556E1 | Fuel cell and method for controlling same | General | 2 | Expired |
| US7722972B2 | Apparatus and method for controlling a fuel cell using the rate of voltage recovery | Emerging Cross-Sectional Technologies | 1 | Active |
| US8597846B2 | Proton exchange membrane fuel cell stack and fuel cell stack module | Emerging Cross-Sectional Technologies | 1 | Active |
| US9012101B2 | Fuel cell stacks | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.