Average Co-Inventor Count = 2.25
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. Kanebo, Limited (3 from 305 patents)
2. Nippon Electric Glass Co., Ltd. (1 from 605 patents)
3 patents:
1. 4140533 - Alkali resistant glass compositions and alkali resistant glass fibers
2. 4067744 - Alkali-resistant glass composition and glass fibers made therefrom
3. 3973974 - Alkali resistant glass compositions and alkali resistant glass fibers