Average Co-Inventor Count = 4.00
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. Ultracell Corporation (2 from 34 patents)
2 patents:
1. D590766 - Portable fuel cell system
2. D590767 - Portable fuel cell system with removable power adaptor