Average Co-Inventor Count = 4.00
ph-index = 1
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. Shin-Etsu Quartz Products Co., Ltd. (1 from 99 patents)
2. Heraeus Quarzglas Gmbh (1 from 45 patents)
1 patent:
1. 6143676 - Synthetic silica glass used with uv-rays and method producing the same