Average Co-Inventor Count = 2.96
ph-index = 8
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 (8 from 90,673 patents)
8 patents:
1. 7159763 - Card reading device for service access
2. 7156302 - Card reading device for service access
3. 7092935 - Customizable filter interface
4. 6978933 - Card for service access
5. 6910627 - Smart card systems and electronic ticketing methods
6. 6877655 - Providing services utilizing a smart card
7. 6827263 - Card for service access
8. 6236410 - Efficient methods for the evaluation of a graphical programming language