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. Charbonnages De France (1 from 64 patents)
1 patent:
1. 4669921 - Device for supplying a powdery product in gravimetrically metered