Average Co-Inventor Count = 2.55
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 (8 from 296 patents)
2. Robert Boschgmbh (1 from 29,302 patents)
9 patents:
1. 9930439 - Headphone
2. 9277039 - Headset and headphone
3. 8638969 - Earphone, headset and ear pad
4. 8559665 - Headset and headphone
5. 8369557 - Earphone and headset
6. 8249267 - Earphone and headset
7. 8204267 - Earphone and headset
8. 8194909 - Earphone, headset and ear protector
9. 6388210 - Operating element for selectively producing electric contacts