Average Co-Inventor Count = 6.00
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. Nippon Mitsubishi Oil Corporation (2 from 84 patents)
2 patents:
1. 6816298 - Electrochromic device
2. 6519072 - Electrochromic device