Average Co-Inventor Count = 1.71
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. (6 from 28,546 patents)
2. Savin Corporation (3 from 105 patents)
3. Nashua Corporation (1 from 85 patents)
12 patents:
1. D907536 - Vehicle cylinder head guard
2. D635496 - Motorcycle fender extension component
3. D298948 - Document feeder
4. D295868 - Copying machine with document handler and sorter
5. D294709 - Electrophotographic copying machine
6. D291892 - Copying machine
7. D286889 - Electrophotographic copying machine
8. D286888 - Electrophotographic copying machine
9. D286887 - Electrostatic copier
10. D286786 - Electrostatic copier
11. D267801 - Sorter with document holding shelves
12. D264219 - Copying machine