Average Co-Inventor Count = 2.90
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. Asahi Glass Company, Limited (3 from 2,560 patents)
3 patents:
1. 6071840 - Dark green colored glass
2. 5908702 - Ultraviolet ray absorbing colored glass
3. 5905047 - Dark gray colored glass