Average Co-Inventor Count = 2.25
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. Roland Corporation (4 from 477 patents)
4 patents:
1. D1102513 - Vibration-proof platform for musical instruments
2. D1095662 - Vibration-proof platform for musical instruments
3. D1094531 - Vibration-proof platform for musical instruments
4. D1022554 - Stand for percussion instrument