Average Co-Inventor Count = 2.00
ph-index = 2
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 Corporation (2 from 192 patents)
2. Rinnai Kabushiki Kaisha (1 from 39 patents)
3 patents:
1. 11041657 - Hot-water supply apparatus
2. 5417566 - Method of preventing burning resonance noise and a burner plate
3. 4737102 - Burner for water heater