Average Co-Inventor Count = 2.06
ph-index = 4
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 51,920 patents)
4 patents:
1. 9002313 - Fully integrated light bar
2. 7746794 - Integrated municipal management console
3. 5877681 - System and method for broadcasting colored light for emergency signalling
4. 5572201 - Alerting device and system for abnormal situations