Average Co-Inventor Count = 3.75
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. Pfu Limited (2 from 677 patents)
2 patents:
1. D469769 - Image reader for a computer or the like
2. D371120 - Image reader for an electronic computer