Average Co-Inventor Count = 2.29
ph-index = 1
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 (4 from 219 patents)
4 patents:
1. D1018496 - Headphone
2. 11203039 - Acoustic-electric transducer
3. D894153 - Headset
4. D866506 - Headphone