Average Co-Inventor Count = 6.00
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. Volkswagen Ag (2 from 3,226 patents)
2. Ab Volvo (2 from 404 patents)
2 patents:
1. 7160638 - Fuel cell system and method for generating electrical energy using a fuel cell system
2. 7045232 - Fuel cell system and method for producing electric energy using a fuel cell system