Average Co-Inventor Count = 3.82
ph-index = 3
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. Scientific Games Holdings Limited (6 from 60 patents)
6 patents:
1. 9324213 - System and method for increasing player participation
2. 8827790 - Method for playing multi-level games of chance
3. 8821295 - User-controlled sweepstakes entries
4. 8696433 - Method for playing multi-level games of chance
5. 8597109 - System and method for increasing player participation
6. 8435119 - User-controlled sweepstakes entries