Keyguard Limited
4Patents
1Active
4Granted
32Portfolio score
Filing activity: Dec 15, 2000 → Jul 31, 2006 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6918464B2 | Energy absorber | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US7188704B2 | Energy absorber | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US7104371B2 | Energy absorber | Fixed Constructions | 9 | Expired |
| US7461727B2 | Energy absorber | Fixed Constructions | 6 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.