Average Co-Inventor Count = 5.90
ph-index = 3
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 (4 from 161 patents)
2. General Electric Company (1 from 51,901 patents)
4 patents:
1. 8636379 - Warning light assembly; components; and, methods
2. 6100791 - Programmable emergency signalling device and system
3. 5877681 - System and method for broadcasting colored light for emergency signalling
4. 5422623 - Programmable emergency signalling device and system