Average Co-Inventor Count = 1.88
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. Audio-technica Corporation (5 from 216 patents)
5 patents:
1. D949101 - Battery charger for earphones
2. D938941 - Earphone
3. 10955682 - Sound signal transmitter and wireless microphone
4. D907602 - Infrared receiver
5. D874437 - Infrared receiver