Average Co-Inventor Count = 2.40
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. Fisher & Paykel Limited (2 from 137 patents)
2 patents:
1. 6811236 - Door opening and closing system
2. 5881566 - Evaporation device for refrigeration equipment