EJA Limited
14Patents
4Active
14Granted
34Portfolio score
Filing activity: Sep 22, 1999 → Mar 1, 2010 · 4 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6705179B1 | Modified rope tensioner | Emerging Cross-Sectional Technologies | 97 | Expired |
| US6213148A | Valve lock and adapter | Emerging Cross-Sectional Technologies | 31 | Expired |
| US6872898B2 | Lockable switch mechanism | Electricity | 16 | Expired |
| US7223927B2 | Lockable switch mechanism | Electricity | 7 | Active |
| US7429708B1 | Safety switch | Electricity | 7 | Active |
| US6446666B1 | Valve lock and adapter | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7339125B2 | Safety switch operating mechanism | Electricity | 5 | Active |
| US8118152B2 | Safety arrangement | Performing Operations; Transporting | 5 | Active |
| US6418592B1 | Rope gripper | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7332989B2 | Switch mechanism | Electricity | 4 | Expired |
| US7067745B2 | Safety switch assembly | Electricity | 3 | Expired |
| US7078639B2 | Switch mechanism with seal | Electricity | 2 | Expired |
| US7394036B2 | Latching mechanism | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6646212B2 | Switch operating mechanism | Electricity | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.