Average Co-Inventor Count = 2.35
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. Guangzhou Rantion Technology Co., Ltd. (3 from 15 patents)
2. Donner Technology LLC (1 from 9 patents)
3. Jinjiang Beisite Electric Technology Co., Ltd. (1 from 1 patent)
4 patents:
1. D973154 - Exercise board
2. D965057 - Piano
3. D940786 - Electronic keyboard
4. D940785 - Electronic piano