Average Co-Inventor Count = 1.62
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. Ricoh Company, Ltd. (5 from 28,566 patents)
5 patents:
1. D917613 - Printer
2. D865052 - Printer
3. D744029 - Printer
4. D702759 - Printer
5. D645899 - Printer