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. Gemplus (2 from 155 patents)
2 patents:
1. 7033274 - Protected slot machine
2. 6579182 - Slot machine with in-built security system