Average Co-Inventor Count = 4.66
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. Ricoh Company, Ltd. (9 from 28,544 patents)
9 patents:
1. D443886 - Electronic copying machine
2. D432160 - Electronic copying machine
3. D429276 - Automatic document feeder for electronic copying machine
4. D429278 - Printer
5. D429275 - Stacker for electronic copying machine
6. D428914 - Electronic copying machine
7. D426259 - Control panel for electronic copying machine
8. D426260 - Sheet feeder for electronic copying machine
9. D425108 - Electronic copying machine