Average Co-Inventor Count = 3.43
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 Glass Company, Limited (2 from 2,560 patents)
2. Nippon Oil Company (1 from 690 patents)
2 patents:
1. 5125935 - Method for efficiently obtaining an adsorbable gas from a gas containing
2. 4929372 - Lubricating oil compositions for chains