Average Co-Inventor Count = 4.41
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. Oki Data Corporation (5 from 1,875 patents)
5 patents:
1. D462379 - Image drum cartridge
2. D451539 - Toner cartridge
3. D450752 - Toner cartridge
4. D450344 - Image drum cartridge
5. D410676 - Image drum cartridge