Average Co-Inventor Count = 3.53
ph-index = 4
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 (5 from 677 patents)
5 patents:
1. D552096 - Image scanner for a computer
2. D518826 - Image scanner for a computer
3. D516069 - Identification image scanner and router
4. D514575 - Image reader for a computer
5. D512717 - Image scanner for a computer