Average Co-Inventor Count = 3.00
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. Ricoh Company, Ltd. (4 from 28,546 patents)
4 patents:
1. 7156130 - Toner filling device and toner production management system
2. 7017625 - Toner filling device and toner production management system
3. 6981530 - Toner filling device and toner production management system
4. 6874546 - Toner filling device and toner production management system