Average Co-Inventor Count = 1.71
ph-index = 5
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 (7 from 90,809 patents)
7 patents:
1. 4453167 - Printer with ink correcting ribbon
2. D271589 - Typewriter
3. D263967 - Desk top electronic calculator
4. D263602 - Desk-top electronic calculator
5. D263151 - Desk top electronic calculator
6. D260776 - Desk top electronic calculator
7. 4218522 - Battery mounting device