Average Co-Inventor Count = 5.89
ph-index = 1
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. 10810866 - Perimeter breach warning system
2. 10607474 - Facility safety system
3. 10504516 - Voice control for emergency vehicle