Average Co-Inventor Count = 1.00
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. Societe Anonyme Francaise Du Ferodo (3 from 120 patents)
3 patents:
1. 4211315 - Cover assembly for a diaphragm spring clutch having diaphragm spring
2. 4155604 - Modulating device for a hydraulic circuit
3. 4132120 - Diaphragm engagement means for expansible pulley