Average Co-Inventor Count = 5.79
ph-index = 6
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. Shenzhen Grandsun Electronic Co., Ltd. (7 from 64 patents)
7 patents:
1. D893457 - Audio input/output device
2. D873248 - Pair of earphones
3. D871367 - Headphone
4. D869436 - Headphone
5. D869434 - Sport earphone
6. D869435 - Sport earphone
7. D859406 - Virtual reality headset