Average Co-Inventor Count = 5.71
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. Sumitomo Chemical Company, Limited (4 from 6,892 patents)
2. Nippon Sheet Glass Company, Limited (4 from 1,156 patents)
4 patents:
1. 5153260 - Resin compositions for light control sheets, and light control sheets
2. 5108857 - Light control sheets
3. 5040870 - Screen for projection
4. 4929523 - Light control sheets