Average Co-Inventor Count = 2.40
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. Knorr-Bremse Gmbh (2 from 95 patents)
2 patents:
1. 4575158 - Brake control valve device for an air pressure brake system of a railway
2. 4298184 - Valve seal for a pressure medium controlling valve