Average Co-Inventor Count = 4.00
ph-index = 1
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. Canon Kabushiki Kaisha (1 from 90,756 patents)
2. Canon Denshi Kabushiki Kaisha (1 from 316 patents)
1 patent:
1. 4424743 - Printing device of type ring selection system