HCE, LLC
6Patents
5Active
6Granted
41Portfolio score
Filing activity: Aug 28, 2003 → Jan 8, 2010 · 5 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7910258B2 | Natural gas direct carbon fuel cell | Emerging Cross-Sectional Technologies | 7 | Active |
| US7467660B2 | Pumped carbon mining methane production process | Chemistry; Metallurgy | 6 | Active |
| US8181941B2 | Gas bubble storage | Emerging Cross-Sectional Technologies | 3 | Active |
| US7163758B2 | Integrated plasma fuel cell process | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7641881B2 | Fertilizer production from fossil fuel with minimal carbon dioxide emission | Emerging Cross-Sectional Technologies | 1 | Active |
| US8119098B2 | Process for converting carbon dioxide from coal utilization to a solid ash | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.