Average Co-Inventor Count = 2.67
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. Helene Curtis Industries, Inc. (4 from 30 patents)
4 patents:
1. 4572220 - Composition for altering the configuration of hair
2. 4391286 - Hair conditioning and composition therefor
3. 4214596 - Permanent wave system using ammonium bisulfite prewrap
4. 4038995 - Hair treating composition containing a mink oil fatty acid quaternary