Average Co-Inventor Count = 3.00
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.
3 patents:
1. D440287 - Water heater top
2. D437922 - Junction box cover for a water heater
3. D436081 - Control box cover for a water heater