Assignee
EVA SIGNAL CORP
US·4 granted patents·342 citations·filing 1998–2003
Top patents by PatentIndex Score
4 records- 0193US7075427B1Traffic warning systemEVA SIGNAL CORP·Filed 2003·Granted Jul 11, 2006·185 cites·25 claims
- 0288US5954299ARailroad crossing traffic warning system apparatus and method thereforeEVA SIGNAL CORP·Filed 1998·Granted Sep 21, 1999·69 cites·20 claims
- 0387US6113037ARailroad maintenance-of-way personnel warning system apparatus and method thereforEVA SIGNAL CORP·Filed 1998·Granted Sep 5, 2000·61 cites·16 claims
- 0467US6471162B1Railroad maintenance-of-way personnel warning system apparatus and method thereforEVA SIGNAL CORP·Filed 2000·Granted Oct 29, 2002·27 cites·8 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →