ULTRACELL LLC
34Patents
21Active
34Granted
47Portfolio score
Filing activity: Jan 8, 1990 → Jun 3, 2020 · 18 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5037712A | Preparation of radiation cured solid electrolytes and electrochemical devices employing the same | Emerging Cross-Sectional Technologies | 79 | Expired |
| US5219680A | Lithium rocking-chair rechargeable battery and electrode therefor | Emerging Cross-Sectional Technologies | 41 | Expired |
| US7648792B2 | Disposable component on a fuel cartridge and for use with a portable fuel cell system | Emerging Cross-Sectional Technologies | 31 | Active |
| USD785567S1 | Battery case with hinged cover and external jacks | General | 24 | Active |
| US5030527A | Radiation cured solid aqueous electrolytes and electrochemical devices employing the same | Emerging Cross-Sectional Technologies | 24 | Expired |
| US7401712B2 | Smart fuel cell cartridge | Emerging Cross-Sectional Technologies | 22 | Active |
| US7968250B2 | Fuel cartridge connectivity | Emerging Cross-Sectional Technologies | 21 | Active |
| US7943263B2 | Heat efficient portable fuel cell systems | Emerging Cross-Sectional Technologies | 16 | Active |
| US7316189B2 | Automated planter | Emerging Cross-Sectional Technologies | 15 | Expired |
| USD539734S1 | Fuel cell system package | General | 14 | Expired |
| US7291191B2 | Fuel cell cartridge filters and pressure relief | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7807313B2 | Compact fuel cell package | Emerging Cross-Sectional Technologies | 12 | Active |
| US7655337B2 | Micro fuel cell thermal management | Emerging Cross-Sectional Technologies | 11 | Active |
| USD590767S1 | Portable fuel cell system with removable power adaptor | General | 6 | Expired |
| US7205060B2 | Method and system for controlling fluid delivery in a fuel cell | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7276096B2 | Fuel processor dewar and methods | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7604673B2 | Annular fuel processor and methods | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7763368B2 | Efficient micro fuel cell systems and methods | Emerging Cross-Sectional Technologies | 5 | Active |
| USD574767S1 | Fuel cell system fuel container and dispenser | General | 5 | Expired |
| US7892690B2 | Methods for controlling fluid delivery in a micro fuel cell system | Emerging Cross-Sectional Technologies | 3 | Active |
| US7585581B2 | Micro fuel cell architecture | Emerging Cross-Sectional Technologies | 3 | Active |
| US7622207B2 | Fuel cell cartridge with reformate filtering | Emerging Cross-Sectional Technologies | 3 | Active |
| US7935452B2 | Micro fuel cell architecture | Emerging Cross-Sectional Technologies | 3 | Active |
| US8821832B2 | Fuel processor for use with portable fuel cells | Emerging Cross-Sectional Technologies | 3 | Active |
| USD590766S1 | Portable fuel cell system | General | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.