Average Co-Inventor Count = 4.00
ph-index = 2
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. Sonic Innovations, Inc. (2 from 42 patents)
2 patents:
1. 6574342 - Hearing aid fitting system
2. 6201875 - Hearing aid fitting system