Average Co-Inventor Count = 4.00
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. Westinghouse Air Brake Technologies Corporation (1 from 338 patents)
2. Convergent Communications, Inc. (1 from 1 patent)
2 patents:
1. 9457821 - Railroad signaling and communication system using a fail-safe voltage sensor to verify trackside conditions in safety-critical railroad applications
2. 8989926 - Railroad signaling and communication system using a fail-safe voltage sensor to verify trackside conditions in safety-critical railroad applications