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. Cubic Corporation (3 from 347 patents)
3 patents:
1. 8856024 - Determining companion and joint cards in transit
2. 7624914 - Validating removable fare collection system
3. 7469817 - Validating removable fare collection system