Average Co-Inventor Count = 6.30
ph-index = 7
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. Hitachi, Ltd. (9 from 42,485 patents)
9 patents:
1. 6622162 - Electronic document circulating system
2. 6526425 - Digitized document circulating system with circulation history
3. 6516328 - Digitized document circulating system with circulation history
4. 6502087 - Work flow management system
5. 6279031 - Electronic document circulating system
6. 6144955 - Work flow management system
7. 5940829 - Work flow management system
8. 5848248 - Electronic document circulating system
9. 5767847 - Digitized document circulating system with circulation history