Average Co-Inventor Count = 2.00
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. Fujitsu Isotec Limited (2 from 26 patents)
2 patents:
1. 6135384 - Device for detecting near end state of roll of paper
2. 6024322 - Device for detecting near end state of roll of paper