Average Co-Inventor Count = 4.67
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)
2. Canon Aptex (1 from 28 patents)
3 patents:
1. 5953031 - Ink tank with ink container and waste ink container
2. D400573 - Ink cartridge for printer
3. D390259 - Ink cartridge for printer