Average Co-Inventor Count = 6.00
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. Sumitomo Chemical Company, Limited (1 from 6,896 patents)
1 patent:
1. 11718927 - Group III nitride crystal substrate having a diameter of 4 inches or more and a curved c-plane with a radius of curvature of 15 m or more