Average Co-Inventor Count = 4.17
ph-index = 6
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. (7 from 113 patents)
7 patents:
1. 8025504 - Display apparatus for teaching writing
2. 7792480 - Electrographic position location apparatus including recording capability and data cartridge including microphone
3. 7249950 - Display apparatus for teaching writing
4. 7106309 - Interactive apparatus using print media
5. 6905391 - Scanning toy
6. 6641401 - Interactive apparatus with templates
7. 6608618 - Interactive apparatus using print media