Average Co-Inventor Count = 4.29
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. Guangzhou Rantion Technology Co., Ltd. (2 from 15 patents)
3 patents:
1. D973154 - Exercise board
2. D940786 - Electronic keyboard
3. D940785 - Electronic piano