Average Co-Inventor Count = 2.86
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. Bombardier Transportation Gmbh (1 from 236 patents)
2. Abb Daimler-benz Transportation Signal Ab (1 from 2 patents)
2 patents:
1. 8525510 - Railway positioning system
2. 5825177 - Device for measuring the speed of a rail-mounted vehicle