Average Co-Inventor Count = 4.00
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. Sonion Nederland B.v. (4 from 140 patents)
2. Sonionmicrotonic Nederland B.v. (1 from 1 patent)
5 patents:
1. 8824713 - Microphone for a hearing aid
2. 8369552 - Microphone for a hearing aid
3. 7492919 - Method for fixing a diaphragm in an electroacoustic transducer
4. 7292700 - Microphone for a hearing aid
5. 7110565 - Electroacoustic transducer with a diaphragm, and method for fixing a diaphragm in such transducer