Average Co-Inventor Count = 1.89
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. Sonova Ag (4 from 343 patents)
4 patents:
1. 11190888 - Cerumen filter applicator
2. D889664 - Hearing aid
3. D844146 - Hearing aid
4. D806648 - Hearing aid charging unit