Average Co-Inventor Count = 2.00
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. Rinnai America Corporation (2 from 27 patents)
2 patents:
1. 9810449 - Methods and apparatus for heating air with hot water
2. 8662404 - Methods and apparatus for heating air with hot water