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. Asahi-dow Limited (2 from 102 patents)
2 patents:
1. 4572803 - Organic rare-earth salt phosphor
2. 4443380 - Organic europlum salt phosphor