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. Sennheiser Electronic Gmbh & Co Kg (4 from 296 patents)
4 patents:
1. D803184 - Pair of earphones
2. D803185 - Pair of earphones
3. D774489 - Pair of earphones
4. D760189 - Earphones