Average Co-Inventor Count = 3.44
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. Tymphany Hk Limited (3 from 25 patents)
2. Tymphany Corporation (3 from 6 patents)
3. Sybersay Communications Corporation (1 from 4 patents)
7 patents:
1. 9967673 - Acoustic transducer comprising a plurality of coaxially arranged diaphragms
2. 9462388 - Acoustic transducer comprising a plurality of coaxially arranged diaphragms
3. 8897472 - Acoustic transducer comprising a plurality of coaxially arranged diaphragms
4. D573586 - Loudspeaker
5. D567212 - Loudspeaker
6. D567214 - Loudspeaker
7. D469422 - Wired communications earpiece