Average Co-Inventor Count = 2.25
ph-index = 2
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. American Cyanamid Company (3 from 3,580 patents)
3 patents:
1. 4455435 - Method for the preparation of Leuco Crystal Violet Lactone
2. 4359577 - Non-pyrophoric nigrosine base
3. 4210601 - Process for preparing