Average Co-Inventor Count = 2.32
ph-index = 4
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 (6 from 90,594 patents)
6 patents:
1. D388820 - Photocopier
2. D380006 - Copying machine
3. D374886 - Original feeding device
4. D374456 - Toner cartridge
5. D362675 - Copying machine
6. D354509 - Copying machine