Average Co-Inventor Count = 4.67
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. Japan Oxygen, Co., Ltd. (3 from 24 patents)
3 patents:
1. 4828593 - Process for the production of glass
2. 4828594 - Process for the production of glass
3. 4828595 - Process for the production of glass