Average Co-Inventor Count = 7.00
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 90,809 patents)
3 patents:
1. 5347763 - Polishing apparatus
2. 4999954 - Polishing apparatus
3. 4974368 - Polishing apparatus