Average Co-Inventor Count = 7.00
ph-index = 4
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. Leapfrog Enterprises, Inc. (5 from 113 patents)
5 patents:
1. 8952887 - Interactive references to related application
2. 7916124 - Interactive apparatus using print media
3. 7106309 - Interactive apparatus using print media
4. 6641401 - Interactive apparatus with templates
5. 6608618 - Interactive apparatus using print media