Average Co-Inventor Count = 4.29
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. Voestalpine Railway Systems Nortrak LLC (2 from 3 patents)
2. Voestalpine Vae Gmbh (1 from 10 patents)
3. Voestalpine Nortrak Inc. (1 from 6 patents)
3 patents:
1. 11168446 - Rail fastening apparatus
2. D910487 - Railroad tie
3. 10400397 - Boltless rail brace