Average Co-Inventor Count = 4.00
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. Sunpower Corporation (2 from 854 patents)
2 patents:
1. 7784184 - Involute foil regenerator method
2. 6991023 - Involute foil regenerator