Average Co-Inventor Count = 3.91
ph-index = 3
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 (3 from 90,697 patents)
3 patents:
1. 4829341 - Document feeding apparatus with image area designation device
2. 4021109 - Electrophotographic copying apparatus
3. 3964827 - Ion modulated image forming apparatus