Average Co-Inventor Count = 2.77
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. Etablissements Bourgogne Et Grasset (3 from 7 patents)
3 patents:
1. 6264109 - Token with electronic chip
2. 5895321 - Gambling chip
3. 5794532 - Gambling chip and method of marking same