Average Co-Inventor Count = 7.20
ph-index = 3
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 (3 from 3,218 patents)
3 patents:
1. 8555864 - Internal combustion engine with an exhaust-gas recirculation and method for operating an internal combustion engine
2. 8091535 - Internal combustion engine with an exhaust-gas recirculation and method for operating an internal combustion engine
3. 7520273 - Exhaust-gas recirculation device and method for operating an exhaust-gas recirculation device