Average Co-Inventor Count = 5.00
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. Systra (1 from 5 patents)
2. Centro De Estudios Materiales Y Control De Obra, S.a (0 patent)
3. Systra France (0 patent)
4. Acciona Construccion, S.a. (0 patent)
1 patent:
1. 12448736 - Ballastless track section for a rail vehicle