Davidson Hydrant Technologies, Inc.
8Patents
4Active
8Granted
33Portfolio score
Filing activity: Dec 4, 2002 → Mar 13, 2008 · 4 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7174911B2 | Fire hydrant with second valve | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6868860B2 | Fire hydrant with second valve | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7055544B2 | Fire hydrant with a second valve | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7240688B2 | Retrofitting a fire hydrant with secondary valve | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7428910B2 | Breathable fire hydrant rod | Emerging Cross-Sectional Technologies | 4 | Active |
| US7775231B2 | Retrofitting a fire hydrant with a replacement hydrant body containing a secondary valve | Emerging Cross-Sectional Technologies | 4 | Active |
| US7575017B2 | Wet barrel fire hydrant system with second valve | Emerging Cross-Sectional Technologies | 3 | Active |
| US7766027B2 | Vented steamer port cap assembly | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.