Average Co-Inventor Count = 3.20
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. Roland Corporation (4 from 477 patents)
4 patents:
1. D987673 - Display screen or portion thereof with graphical user interface
2. D961602 - Display screen or portion thereof with graphical user interface
3. D916879 - Display screen or portion thereof with graphical user interface
4. 9633642 - Electronic musical instrument system