Average Co-Inventor Count = 2.22
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. Hochiki Corporation (4 from 197 patents)
5 patents:
1. D904215 - Smoke detector
2. D871245 - Fire detector
3. D849580 - Fire detector
4. 9836937 - Sensor system, sensor, and detachment tool
5. D675948 - Heat and smoke detector