Average Co-Inventor Count = 4.86
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. Kao Corporation (9 from 3,602 patents)
9 patents:
1. 6746493 - Hair dye composition
2. 6689173 - Hair dye composition
3. 6648924 - Hair dye composition
4. 6616709 - Hair dye composition
5. 6607563 - Hair dye composition
6. 6605125 - Hair dye composition
7. 6569412 - Treatment composition for dyed hair
8. 6547834 - Hair dye composition
9. 6475248 - Hair dye composition