Average Co-Inventor Count = 2.00
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. Union Switch & Signal, Inc. (1 from 87 patents)
2. Ansaldo Sts USA, Inc. (1 from 21 patents)
2 patents:
1. 7542831 - Geographic information system and method for monitoring dynamic train positions
2. 7395140 - Geographic information system and method for monitoring dynamic train positions