Ryan Hallum
17Patents
6h-index
21Co-inventors
62Inventor score
Filing activity: Mar 31, 2000 → Sep 5, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6455181B1 | Fuel cell system with sensor | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6650968B2 | Technique to regulate an efficiency of a fuel cell system | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6939635B2 | Method and apparatus for controlling a combined heat and power fuel cell system | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6835483B2 | Method and apparatus for controlling a combined heat and power fuel cell system | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7026065B2 | Fuel cell system heat recovery | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6740437B2 | Method and apparatus for controlling a combined heat and power fuel cell system | Emerging Cross-Sectional Technologies | 6 | Expired |
| US9059455B2 | Methods of refurbishing components of a fuel cell stack | Emerging Cross-Sectional Technologies | 4 | Active |
| US7332236B2 | Method and apparatus for controlling a combined heat and power fuel cell system | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8535841B1 | Methods of refurbishing components of a fuel cell stack | Emerging Cross-Sectional Technologies | 3 | Active |
| US6576356B1 | Preconditioning membranes of a fuel cell stack | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7276307B2 | Method and apparatus for controlling a combined heat and power fuel cell system | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7166379B2 | Technique to regulate an efficiency of a fuel cell system | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7285346B2 | Method and apparatus for controlling a combined heat and power fuel cell system | Emerging Cross-Sectional Technologies | 1 | Expired |
| US9142845B2 | Solid oxide fuel cell stack heat treatment methods and apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
| US9059449B2 | Rapid thermal processing for SOFC manufacturing | Emerging Cross-Sectional Technologies | 0 | Active |
| US7166378B2 | Technique to regulate an efficiency of a fuel cell system | Emerging Cross-Sectional Technologies | 0 | Expired |
| US6774637B2 | Method of qualifying at least a portion of a fuel cell system and an apparatus employing same | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.