Average Co-Inventor Count = 4.94
ph-index = 2
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Federal Signal Corporation (5 from 162 patents)
5 patents:
1. 12240375 - Electronically controlled siren
2. 11453330 - Vehicle peripheral lighting system
3. 8742916 - Warning light arrangements; components; and, methods
4. D659041 - Warning light
5. D638732 - Warning light