Average Co-Inventor Count = 2.00
ph-index = 2
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. Panasonic Corporation (2 from 16,453 patents)
2 patents:
1. D620045 - Toner cartridge
2. D619644 - Drum cartridge