Average Co-Inventor Count = 2.40
ph-index = 1
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. Clairol Incorporated (2 from 283 patents)
2 patents:
1. H000726 - 2,4-bis-aryloxy-m-phenylenediamines and their use as couplers in
2. 4838894 - Hair dye coupler and process for making