Average Co-Inventor Count = 4.00
ph-index = 2
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 (2 from 6,892 patents)
2. Nippon Sheet Glass Company, Limited (2 from 1,156 patents)
2 patents:
1. 5153260 - Resin compositions for light control sheets, and light control sheets
2. 5040870 - Screen for projection