Average Co-Inventor Count = 10.00
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. Leapfrog Enterprises, Inc. (3 from 113 patents)
3 patents:
1. 8025505 - Interactive hand held apparatus with stylus
2. 7553160 - Interactive hand held apparatus with stylus
3. 7083420 - Interactive handheld apparatus with stylus