Average Co-Inventor Count = 1.00
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. Abb Daimler-benz Transportation Signal Ab (1 from 2 patents)
1 patent:
1. 5740046 - Method to control in a track traffic system moving units, device for