Average Co-Inventor Count = 2.31
ph-index = 1
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. (5 from 31 patents)
5 patents:
1. 11631384 - Mechanical connections in piano-action of piano
2. 11087729 - System and method for recording user performance of keyboard instrument
3. 10950137 - Smart piano system
4. 10782714 - Heat dissipation system and method for smart pianos
5. 10600399 - Smart piano system