Average Co-Inventor Count = 7.00
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 (3 from 162 patents)
3 patents:
1. 8742916 - Warning light arrangements; components; and, methods
2. D659041 - Warning light
3. D638732 - Warning light