Average Co-Inventor Count = 2.00
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. Sunland Information Technology Co., Ltd. (8 from 31 patents)
8 patents:
1. D917556 - Display screen of smart piano with transitional graphical user interface
2. D901523 - Display screen of smart piano with transitional graphical user interface
3. D900864 - Display screen of smart piano with transitional graphical user interface
4. D849828 - Upright piano
5. D849827 - Upright piano
6. D849829 - Upright piano
7. D834638 - Grand piano
8. D814556 - Upright piano