Average Co-Inventor Count = 5.83
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. Other (1 from 832,843 patents)
2. Ernst & Young U.s.llp (1 from 13 patents)
2 patents:
1. 9950716 - Automated track inspection system
2. 8644473 - Method and system for providing telephony services