Average Co-Inventor Count = 2.00
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. Automobiles, Peugeot (2 from 285 patents)
2. Societe Anonyme Automobiles Citroen (2 from 79 patents)
2 patents:
1. 4333438 - Device for recycling exhaust gases for a diesel engine
2. 4266524 - Device for regulating the amount of exhaust gases recycled to a diesel