Average Co-Inventor Count = 3.82
ph-index = 3
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, Inc. (7 from 140 patents)
7 patents:
1. 5601813 - Cysteamine permanent wave composition and method
2. 5460809 - Cysteamine permanent wave composition and method
3. 5456907 - Cysteamine permanent wave composition and method
4. 5439675 - Cysteamine permanent wave composition and method
5. 5382426 - Cysteamine permament wave composition and method
6. 5362487 - Cysteamine permanent wave composition and method
7. 5260054 - Cysteamine permanent wave composition and method