Average Co-Inventor Count = 1.20
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. Dreamus Company (2 from 13 patents)
2. Iriver Limited. (1 from 20 patents)
3 patents:
1. D933037 - Audio amplifier
2. D901434 - Digital audio player
3. D892761 - Digital audio player